Import chromium-74.0.3729.108

src/.clang-format

@@ -0,0 +1,36 @@
+# Defines the Chromium style for automatic reformatting.
+# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+BasedOnStyle: Chromium
+# This defaults to 'Auto'. Explicitly set it for a while, so that
+# 'vector<vector<int> >' in existing files gets formatted to
+# 'vector<vector<int>>'. ('Auto' means that clang-format will only use
+# 'int>>' if the file already contains at least one such instance.)
+Standard: Cpp11
+
+# Make sure code like:
+# IPC_BEGIN_MESSAGE_MAP()
+#   IPC_MESSAGE_HANDLER(WidgetHostViewHost_Update, OnUpdate)
+# IPC_END_MESSAGE_MAP()
+# gets correctly indented.
+MacroBlockBegin: "^\
+BEGIN_MSG_MAP|\
+BEGIN_MSG_MAP_EX|\
+BEGIN_SAFE_MSG_MAP_EX|\
+CR_BEGIN_MSG_MAP_EX|\
+IPC_BEGIN_MESSAGE_MAP|\
+IPC_BEGIN_MESSAGE_MAP_WITH_PARAM|\
+IPC_PROTOBUF_MESSAGE_TRAITS_BEGIN|\
+IPC_STRUCT_BEGIN|\
+IPC_STRUCT_BEGIN_WITH_PARENT|\
+IPC_STRUCT_TRAITS_BEGIN|\
+POLPARAMS_BEGIN|\
+PPAPI_BEGIN_MESSAGE_MAP$"
+MacroBlockEnd: "^\
+CR_END_MSG_MAP|\
+END_MSG_MAP|\
+IPC_END_MESSAGE_MAP|\
+IPC_PROTOBUF_MESSAGE_TRAITS_END|\
+IPC_STRUCT_END|\
+IPC_STRUCT_TRAITS_END|\
+POLPARAMS_END|\
+PPAPI_END_MESSAGE_MAP$"

src/.gitattributes

@@ -0,0 +1,48 @@
+# Stop Windows python license check presubmit errors by forcing LF checkout.
+*.py  text eol=lf
+
+# Force LF checkout of the pins files to avoid transport_security_state_generator errors.
+/net/http/*.pins  text eol=lf
+
+# Force LF checkout for all source files
+*.c text eol=lf
+*.cc text eol=lf
+*.cpp text eol=lf
+*.grd   text eol=lf
+*.grdp   text eol=lf
+*.gn text eol=lf
+*.gni text eol=lf
+*.h text eol=lf
+*.html   text eol=lf
+*.in   text eol=lf
+*.inc   text eol=lf
+*.java   text eol=lf
+*.js   text eol=lf
+*.json   text eol=lf
+*.md text eol=lf
+*.mm text eol=lf
+*.sh text eol=lf
+*.sql   text eol=lf
+*.txt   text eol=lf
+*.xml   text eol=lf
+*.xslt   text eol=lf
+.clang-format   text eol=lf
+.eslintrc.js   text eol=lf
+.git-blame-ignore-revs   text eol=lf
+.gitattributes   text eol=lf
+.gitignore   text eol=lf
+.vpython   text eol=lf
+codereview.settings   text eol=lf
+DEPS   text eol=lf
+ENG_REVIEW_OWNERS   text eol=lf
+LICENSE text eol=lf
+LICENSE.* text eol=lf
+MAJOR_BRANCH_DATE   text eol=lf
+OWNERS   text eol=lf
+README   text eol=lf
+README.*   text eol=lf
+WATCHLISTS   text eol=lf
+VERSION   text eol=lf
+
+# Skip Tricium by default on files in third_party.
+third_party/** -tricium

src/.gn

@@ -0,0 +1,685 @@
+# This file is used by the GN meta build system to find the root of the source
+# tree and to set startup options. For documentation on the values set in this
+# file, run "gn help dotfile" at the command line.
+
+import("//build/dotfile_settings.gni")
+import("//third_party/angle/dotfile_settings.gni")
+
+# The location of the build configuration file.
+buildconfig = "//build/config/BUILDCONFIG.gn"
+
+# The secondary source root is a parallel directory tree where
+# GN build files are placed when they can not be placed directly
+# in the source tree, e.g. for third party source trees.
+secondary_source = "//build/secondary/"
+
+# These arguments override the default values for items in a declare_args
+# block. "gn args" in turn can override these.
+#
+# In general the value for a build arg in the declare_args block should be the
+# default. In some cases, a DEPS-ed in project will want different defaults for
+# being built as part of Chrome vs. being built standalone. In this case, the
+# Chrome defaults should go here. There should be no overrides here for
+# values declared in the main Chrome repository.
+#
+# Important note for defining defaults: This file is executed before the
+# BUILDCONFIG.gn file. That file sets up the global variables like "is_ios".
+# This means that the default_args can not depend on the platform,
+# architecture, or other build parameters. If you really need that, the other
+# repo should define a flag that toggles on a behavior that implements the
+# additional logic required by Chrome to set the variables.
+default_args = {
+  # TODO(brettw) bug 684096: Chrome on iOS does not build v8, so "gn gen" prints
+  # a warning that "Build argument has no effect". When adding a v8 variable, it
+  # also needs to be defined to src/ios/BUILD.gn (respectively removed from both
+  # location when it is removed).
+
+  v8_extra_library_files = [
+    # Dependencies used by the extra libraries. Putting them here causes them
+    # to be executed first during snapshot creation.
+    "//third_party/blink/renderer/core/streams/CommonOperations.js",
+    "//third_party/blink/renderer/core/streams/CommonStrings.js",
+    "//third_party/blink/renderer/core/streams/SimpleQueue.js",
+
+    # Extra libraries.
+    "//third_party/blink/renderer/core/streams/ByteLengthQueuingStrategy.js",
+    "//third_party/blink/renderer/core/streams/CountQueuingStrategy.js",
+    "//third_party/blink/renderer/core/streams/ReadableStream.js",
+    "//third_party/blink/renderer/core/streams/WritableStream.js",
+    "//third_party/blink/renderer/core/streams/TransformStream.js",
+  ]
+  v8_experimental_extra_library_files = []
+  v8_enable_gdbjit = false
+  v8_imminent_deprecation_warnings = false
+
+  # TODO(jochen): Remove this. http://crbug.com/v8/5830,
+  # http://crbug.com/728583.
+  v8_check_microtasks_scopes_consistency = false
+
+  # Don't include webrtc's builtin task queue implementation.
+  rtc_link_task_queue_impl = false
+
+  # Don't include the iLBC audio codec.
+  # TODO(bugs.webrtc.org/8396): Once WebRTC gets rid of its internal
+  # deps on codecs, we can remove this.
+  rtc_include_ilbc = false
+
+  # Changes some setup for the Crashpad build to set them to build against
+  # Chromium's zlib, base, etc.
+  crashpad_dependencies = "chromium"
+}
+
+# These are the targets to check headers for by default. The files in targets
+# matching these patterns (see "gn help label_pattern" for format) will have
+# their includes checked for proper dependencies when you run either
+# "gn check" or "gn gen --check".
+check_targets = [
+  "//apps/*",
+  "//ash/*",
+  "//base/*",
+  "//blink/*",
+  "//build/*",
+  "//buildtools/*",
+  "//cc/*",
+
+  #"//chrome/android/*",  # 13 errors
+  "//chrome/app/*",
+  "//chrome/app_shim/*",
+
+  #"//chrome/browser/*",  # ~1300 errors
+  #"//chrome/browser:*",  # ~600 errors
+  "//chrome/browser/accessibility/*",
+  "//chrome/browser/android/*",
+  "//chrome/browser/app_mode/*",
+  "//chrome/browser/apps/*",
+  "//chrome/browser/assist_ranker/*",
+  "//chrome/browser/autocomplete/*",
+  "//chrome/browser/autofill/*",
+  "//chrome/browser/background/*",
+  "//chrome/browser/background_fetch/*",
+  "//chrome/browser/background_sync/*",
+  "//chrome/browser/banners/*",
+  "//chrome/browser/bitmap_fetcher/*",
+  "//chrome/browser/bookmarks/*",
+  "//chrome/browser/browsing_data/*",
+  "//chrome/browser/budget_service/*",
+  "//chrome/browser/captive_portal/*",
+  "//chrome/browser/chooser_controller/*",
+  "//chrome/browser/chromeos/*",
+  "//chrome/browser/client_hints/*",
+  "//chrome/browser/clipboard/*",
+  "//chrome/browser/component_updater/*",
+  "//chrome/browser/conflicts/*",
+  "//chrome/browser/consent_auditor/*",
+  "//chrome/browser/content_settings/*",
+  "//chrome/browser/crash_upload_list/*",
+  "//chrome/browser/custom_handlers/*",
+  "//chrome/browser/data_saver/*",
+  "//chrome/browser/data_use_measurement/*",
+  "//chrome/browser/dbus/*",
+
+  #"//chrome/browser/devtools/*",  # 93 errors
+  "//chrome/browser/diagnostics/*",
+  "//chrome/browser/domain_reliability/*",
+  "//chrome/browser/dom_distiller/*",
+  "//chrome/browser/downgrade/*",
+  "//chrome/browser/download/*",
+  "//chrome/browser/drive/*",
+  "//chrome/browser/engagement/*",
+  "//chrome/browser/extensions/*",
+  "//chrome/browser/external_protocol/*",
+  "//chrome/browser/favicon/*",
+  "//chrome/browser/feature_engagement/*",
+  "//chrome/browser/feedback/*",
+  "//chrome/browser/first_run/*",
+  "//chrome/browser/gcm/*",
+  "//chrome/browser/generic_sensor/*",
+  "//chrome/browser/geolocation/*",
+  "//chrome/browser/google/*",
+  "//chrome/browser/gpu/*",
+  "//chrome/browser/guest_view/*",
+  "//chrome/browser/hang_monitor/*",
+  "//chrome/browser/history/*",
+  "//chrome/browser/importer/*",
+  "//chrome/browser/infobars/*",
+  "//chrome/browser/installable/*",
+  "//chrome/browser/install_verification/*",
+  "//chrome/browser/internal/*",
+  "//chrome/browser/interstitials/*",
+  "//chrome/browser/invalidation/*",
+  "//chrome/browser/language/*",
+  "//chrome/browser/lifetime/*",
+
+  #"//chrome/browser/loader/*",  # 2 errors
+  "//chrome/browser/local_discovery/*",
+  "//chrome/browser/mac/*",
+
+  #"//chrome/browser/media/*",  # 74 errors
+  "//chrome/browser/media_galleries/*",
+  "//chrome/browser/memory/*",
+  "//chrome/browser/metrics/*",
+  "//chrome/browser/nacl_host/*",
+  "//chrome/browser/navigation_predictor/*",
+  "//chrome/browser/net/*",
+  "//chrome/browser/notifications/*",
+  "//chrome/browser/ntp_snippets/*",
+  "//chrome/browser/ntp_tiles/*",
+  "//chrome/browser/obsolete_system/*",
+  "//chrome/browser/offline_items_collection/*",
+  "//chrome/browser/offline_pages/*",
+  "//chrome/browser/page_load_metrics/*",
+  "//chrome/browser/password_manager/*",
+  "//chrome/browser/payments/*",
+  "//chrome/browser/pdf/*",
+  "//chrome/browser/performance_monitor/*",
+  "//chrome/browser/permissions/*",
+  "//chrome/browser/picture_in_picture/*",
+  "//chrome/browser/plugins/*",
+
+  # "//chrome/browser/policy/*",  # 1 error on Windows
+  "//chrome/browser/predictors/*",
+  "//chrome/browser/prefetch/*",
+  "//chrome/browser/prefs/*",
+  "//chrome/browser/prerender/*",
+  "//chrome/browser/previews/*",
+  "//chrome/browser/printing/*",
+  "//chrome/browser/profile_resetter/*",
+  "//chrome/browser/profiles/*",
+
+  #"//chrome/browser/profiling_host/*",  # 16 errors
+  "//chrome/browser/push_messaging/*",
+  "//chrome/browser/recovery/*",
+  "//chrome/browser/renderer_context_menu/*",
+  "//chrome/browser/renderer_host/*",
+  "//chrome/browser/resource_coordinator/*",
+
+  #"//chrome/browser/resources/*",  # 18 errors on ChromeOS
+  "//chrome/browser/rlz/*",
+
+  #"//chrome/browser/safe_browsing/*",  # 239 errors
+  "//chrome/browser/search/*",
+  "//chrome/browser/search_engines/*",
+  "//chrome/browser/search_provider_logos/*",
+  "//chrome/browser/service_process/*",
+  "//chrome/browser/sessions/*",
+  "//chrome/browser/signin/*",
+  "//chrome/browser/speech/*",
+  "//chrome/browser/spellchecker/*",
+  "//chrome/browser/ssl/*",
+  "//chrome/browser/status_icons/*",
+  "//chrome/browser/storage/*",
+  "//chrome/browser/subresource_filter/*",
+  "//chrome/browser/supervised_user/*",
+  "//chrome/browser/sync/*",
+  "//chrome/browser/sync_file_system/*",
+  "//chrome/browser/tab_contents/*",
+  "//chrome/browser/task_manager/*",
+  "//chrome/browser/themes/*",
+  "//chrome/browser/thumbnails/*",
+  "//chrome/browser/tracing/*",
+  "//chrome/browser/translate/*",
+  "//chrome/browser/ui/*",
+  "//chrome/browser/undo/*",
+  "//chrome/browser/unified_consent/*",
+  "//chrome/browser/update_client/*",
+  "//chrome/browser/upgrade_detector/*",
+  "//chrome/browser/usb/*",
+  "//chrome/browser/vr/*",
+  "//chrome/browser/web_applications/*",
+  "//chrome/browser/webauthn/*",
+  "//chrome/browser/webshare/*",
+  "//chrome/browser/win/*",
+
+  "//chrome/build/*",
+
+  #"//chrome/child/*",  # 1 error on Windows
+  "//chrome/chrome_cleaner/*",
+
+  #"//chrome/chrome_watcher/*",  # 3 errors on Windows
+  "//chrome/common/*",
+
+  #"//chrome/elevation_service/*",  # 1 error on Windows
+  #"//chrome/gpu/*",  # 7 errors
+  "//chrome/installer/*",
+
+  #"//chrome/install_static/*",  # 8 errors on Windows
+  "//chrome/nacl/*",
+
+  #"//chrome/notification_helper/*",  # 4 errors on Windows
+  #"//chrome/renderer/*",  # ~30 errors
+  #"//chrome/service/*",  # 2 errors
+  #"//chrome/services/*",  # ~30 errors
+  #"//chrome/test/*",  # ~3000 errors
+  "//chrome/third_party/*",
+  "//chrome/tools/*",
+  "//chrome/utility/*",
+
+  "//chromecast/*",
+  "//chromeos/*",
+  "//chrome_elf/*",
+  "//cloud_print/*",
+  "//components/*",
+  "//content/*",
+  "//courgette/*",
+  "//crypto/*",
+  "//data/*",
+  "//dbus/*",
+  "//device/*",
+
+  #"//extensions/*",  # Lots of errors.
+  "//extensions:extensions_resources",
+  "//extensions:extensions_browsertests",
+  "//extensions:extensions_unittests",
+  "//extensions/browser",
+  "//extensions/browser:browser_tests",
+  "//extensions/browser:unit_tests",
+  "//extensions/browser/install:*",
+  "//extensions/common/*",
+  "//extensions/components/javascript_dialog_extensions_client",
+  "//extensions/components/native_app_window",
+  "//extensions/renderer:unit_tests",
+  "//extensions/shell/*",
+  "//extensions/strings/*",
+  "//fuchsia/*",
+  "//gin/*",
+  "//google_apis/*",
+  "//google_update/*",
+  "//gpu/*",
+
+  "//ios/*",
+  "//ios_internal/*",
+  "//ipc/*",
+
+  #"//jingle/*",
+
+  "//media/*",
+  "//mojo/*",
+
+  #"//native_client/*",
+  "//net/*",
+
+  #"//pdf/*",  # Medium-hard.
+  #"//ppapi/*",  # Lots of errors.
+  "//ppapi/examples/*",
+  "//ppapi/tests/*",
+  "//printing/*",
+
+  #"//remoting/*",  # Medium-hard.
+  "//rlz/*",
+
+  #"//sandbox/*",  # Medium-hard.
+  "//services/*",
+  "//skia/*",
+  "//sql/*",
+  "//storage/*",
+  "//testing/*",
+
+  #"//third_party/*",  # May not ever want this.
+  "//third_party:freetype_harfbuzz",
+  "//third_party/Python-Markdown/*",
+
+  # "//third_party/SPIRV-Tools/*",  # 30ish errors
+  "//third_party/abseil-cpp/*",
+  "//third_party/accessibility-audit/*",
+  "//third_party/accessibility_test_framework/*",
+  "//third_party/adobe/*",
+  "//third_party/afl/*",
+  "//third_party/android_build_tools/*",
+  "//third_party/android_crazy_linker/*",
+  "//third_party/android_data_chart/*",
+  "//third_party/android_deps/*",
+  "//third_party/android_media/*",
+  "//third_party/android_ndk/*",
+  "//third_party/android_opengl/*",
+  "//third_party/android_platform/*",
+  "//third_party/android_protobuf/*",
+  "//third_party/android_sdk/*",
+  "//third_party/android_support_test_runner/*",
+  "//third_party/android_swipe_refresh/*",
+  "//third_party/android_system_sdk/*",
+  "//third_party/android_testrunner/*",
+  "//third_party/android_tools/*",
+
+  # "//third_party/angle/*",  # 30ish errors
+  "//third_party/apache-portable-runtime/*",
+  "//third_party/apache_velocity/*",
+  "//third_party/apache-win32/*",
+  "//third_party/apk-patch-size-estimator/*",
+  "//third_party/apple_apsl/*",
+  "//third_party/appurify-python/*",
+  "//third_party/arcore-android-sdk/*",
+  "//third_party/ashmem/*",
+  "//third_party/auto/*",
+  "//third_party/axe-core/*",
+  "//third_party/bazel/*",
+  "//third_party/binutils/*",
+  "//third_party/blanketjs/*",
+
+  # "//third_party/blink/*",  # Errors: https://crbug.com/800764
+  "//third_party/blink/public/*",
+
+  #"//third_party/breakpad/*",  # Small errors.
+  "//third_party/boringssl/*",
+  "//third_party/bouncycastle/*",
+  "//third_party/brotli/*",
+  "//third_party/bspatch/*",
+  "//third_party/byte_buddy/*",
+  "//third_party/cacheinvalidation/*",
+  "//third_party/catapult/*",
+  "//third_party/cct_dynamic_module/*",
+
+  # "//third_party/ced/*",  # 6 errors
+  "//third_party/chaijs/*",
+  "//third_party/checkstyle/*",
+  "//third_party/chromevox/*",
+  "//third_party/chromite/*",
+  "//third_party/cld_2/*",
+  "//third_party/cld_3/*",
+  "//third_party/closure_compiler/*",
+  "//third_party/colorama/*",
+
+  # "//third_party/crashpad/*", 20ish errors
+  "//third_party/crc32c/*",
+  "//third_party/cros_system_api/*",
+  "//third_party/custom_tabs_client/*",
+  "//third_party/cython/*",
+  "//third_party/d3/*",
+  "//third_party/dawn/*",
+  "//third_party/decklink/*",
+  "//third_party/depot_tools/*",
+  "//third_party/deqp/*",
+  "//third_party/devscripts/*",
+  "//third_party/devtools-node-modules/*",
+  "//third_party/dom_distiller_js/*",
+  "//third_party/elfutils/*",
+  "//third_party/errorprone/*",
+  "//third_party/espresso/*",
+  "//third_party/expat/*",
+  "//third_party/eyesfree/*",
+  "//third_party/feed/*",
+
+  # "//third_party/ffmpeg/*",  # android_cronet only https://crbug.com/898793
+  "//third_party/fips181/*",
+  "//third_party/flac/*",
+  "//third_party/flatbuffers/*",
+  "//third_party/flot/*",
+  "//third_party/fontconfig/*",
+  "//third_party/freetype/*",
+  "//third_party/freetype2/*",
+  "//third_party/freetype-android/*",
+  "//third_party/fuchsia-sdk/*",
+  "//third_party/gestures/*",
+  "//third_party/gif_player/*",
+  "//third_party/glfw/*",
+  "//third_party/glslang/*",
+  "//third_party/google_appengine_cloudstorage/*",
+  "//third_party/google_input_tools/*",
+  "//third_party/googletest/*",
+  "//third_party/google_toolbox_for_mac/*",
+  "//third_party/google-truth/*",
+  "//third_party/gradle_wrapper/*",
+  "//third_party/gson/*",
+  "//third_party/guava/*",
+  "//third_party/gvr-android-keyboard/*",
+  "//third_party/gvr-android-sdk/*",
+  "//third_party/hamcrest/*",
+  "//third_party/harfbuzz-ng/*",
+  "//third_party/hunspell/*",
+  "//third_party/hunspell/*",
+  "//third_party/hunspell_dictionaries/*",
+  "//third_party/iaccessible2/*",
+  "//third_party/iccjpeg/*",
+
+  # "//third_party/icu/*",  # Many errors
+  "//third_party/icu4j/*",
+  "//third_party/ijar/*",
+  "//third_party/ink/*",
+  "//third_party/inspector_protocol/*",
+  "//third_party/instrumented_libraries/*",
+  "//third_party/intellij/*",
+  "//third_party/isimpledom/*",
+  "//third_party/javax_inject/*",
+  "//third_party/jinja2/*",
+  "//third_party/jsoncpp/*",
+  "//third_party/jsr-305/*",
+  "//third_party/jstemplate/*",
+  "//third_party/junit/*",
+  "//third_party/khronos/*",
+  "//third_party/lcov/*",
+  "//third_party/leakcanary/*",
+  "//third_party/leveldatabase/*",
+  "//third_party/libFuzzer/*",
+  "//third_party/libXNVCtrl/*",
+  "//third_party/libaddressinput/*",
+
+  # "//third_party/libaom/*",  # https://crbug.com/899771
+  "//third_party/libc++/*",
+  "//third_party/libc++abi/*",
+  "//third_party/libcxx-pretty-printers/*",
+  "//third_party/libdrm/*",
+  "//third_party/libevdev/*",
+  "//third_party/libexif/*",
+  "//third_party/libjingle/*",
+
+  # "//third_party/libjingle_xmpp/*",  # 30ish errors
+  "//third_party/libjpeg/*",
+
+  # "//third_party/libjpeg_turbo/*",  # 3 errors
+  # "//third_party/liblouis/*",  # Small errors
+  "//third_party/libovr/*",
+  "//third_party/libphonenumber/*",
+  "//third_party/libpng/*",
+  "//third_party/libprotobuf-mutator/*",
+  "//third_party/libsecret/*",
+  "//third_party/libsrtp/*",
+  "//third_party/libsync/*",
+  "//third_party/libudev/*",
+  "//third_party/libusb/*",
+
+  # "//third_party/libvpx/*",  # Many errors
+  "//third_party/libvpx_new/*",
+  "//third_party/libwebm/*",
+
+  #"//third_party/libwebp/*",  # Errors: https://crbug.com/800762
+  "//third_party/libxml/*",
+  "//third_party/libxslt/*",
+  "//third_party/libyuv/*",
+  "//third_party/llvm/*",
+  "//third_party/llvm-bootstrap/*",
+  "//third_party/llvm-bootstrap-install/*",
+  "//third_party/llvm-build-tools/*",
+  "//third_party/logilab/*",
+  "//third_party/lss/*",
+  "//third_party/lzma_sdk/*",
+  "//third_party/mach_override/*",
+  "//third_party/markdown/*",
+  "//third_party/markupsafe/*",
+  "//third_party/material_design_icons/*",
+  "//third_party/mesa_headers/*",
+  "//third_party/metrics_proto/*",
+  "//third_party/minigbm/*",
+  "//third_party/minizip/*",
+  "//third_party/mocha/*",
+  "//third_party/mockito/*",
+  "//third_party/modp_b64/*",
+  "//third_party/motemplate/*",
+  "//third_party/mozilla/*",
+  "//third_party/mtpd/*",
+  "//third_party/netty4/*",
+  "//third_party/netty-tcnative/*",
+  "//third_party/node/*",
+  "//third_party/nvml/*",
+  "//third_party/objenesis/*",
+  "//third_party/ocmock/*",
+  "//third_party/openh264/*",
+
+  # "//third_party/openmax_dl/*",  # 1 error
+  "//third_party/openvr/*",
+  "//third_party/opus/*",
+  "//third_party/ots/*",
+  "//third_party/ow2_asm/*",
+
+  # "//third_party/pdfium/*",  # 3 errors
+  "//third_party/perfetto/*",
+  "//third_party/pexpect/*",
+  "//third_party/ply/*",
+  "//third_party/polymer/*",
+  "//third_party/proguard/*",
+  "//third_party/protobuf/*",
+  "//third_party/pycoverage/*",
+  "//third_party/pyelftools/*",
+  "//third_party/pyftpdlib/*",
+  "//third_party/pyjson5/*",
+  "//third_party/pylint/*",
+  "//third_party/pymock/*",
+  "//third_party/pystache/*",
+  "//third_party/py_trace_event/*",
+  "//third_party/pywebsocket/*",
+  "//third_party/qcms/*",
+  "//third_party/quic_trace/*",
+  "//third_party/qunit/*",
+  "//third_party/r8/*",
+  "//third_party/re2/*",
+  "//third_party/requests/*",
+  "//third_party/retrolambda/*",
+  "//third_party/rnnoise/*",
+  "//third_party/robolectric/*",
+  "//third_party/s2cellid/*",
+  "//third_party/safe_browsing/*",
+  "//third_party/scan-build/*",
+
+  # "//third_party/sfntly/*",  # 20ish errors
+  "//third_party/shaderc/*",
+  "//third_party/simplejson/*",
+  "//third_party/sinonjs/*",
+  "//third_party/skia/*",
+  "//third_party/smhasher/*",
+  "//third_party/snappy/*",
+  "//third_party/speech-dispatcher/*",
+  "//third_party/spirv-cross/*",
+  "//third_party/spirv-headers/*",
+  "//third_party/sqlite/*",
+  "//third_party/sqlite4java/*",
+  "//third_party/stp/*",
+  "//third_party/sudden_motion_sensor/*",
+
+  # "//third_party/swiftshader/*",  # 1 error
+  "//third_party/swig/*",
+  "//third_party/tcmalloc/*",
+  "//third_party/test_fonts/*",
+  "//third_party/tlslite/*",
+  "//third_party/ub-uiautomator/*",
+  "//third_party/unrar/*",
+  "//third_party/usb_ids/*",
+  "//third_party/usrsctp/*",
+  "//third_party/v4l-utils/*",
+  "//third_party/valgrind/*",
+  "//third_party/visualmetrics/*",
+  "//third_party/vulkan/*",
+  "//third_party/vulkan-validation-layers/*",
+
+  # "//third_party/wayland/*",  # Small errors
+  "//third_party/wayland-protocols/*",
+  "//third_party/wds/*",
+  "//third_party/web-animations-js/*",
+  "//third_party/webdriver/*",
+  "//third_party/webgl/*",
+  "//third_party/webpagereplay/*",
+  "//third_party/webrtc/*",
+  "//third_party/webrtc_overrides/*",
+  "//third_party/widevine/*",
+  "//third_party/win_build_output/*",
+  "//third_party/woff2/*",
+  "//third_party/wtl/*",
+  "//third_party/xdg-utils/*",
+  "//third_party/xstream/*",
+  "//third_party/yasm/*",
+  "//third_party/zlib/*",
+  "//third_party/woff2/*",
+
+  "//tools/*",
+  "//ui/*",
+  "//url/*",
+
+  #"//v8/*",  # Errors: https://bugs.chromium.org/p/v8/issues/detail?id=7330
+]
+
+# These are the list of GN files that run exec_script. This whitelist exists
+# to force additional review for new uses of exec_script, which is strongly
+# discouraged.
+#
+# PLEASE READ
+#
+# You should almost never need to add new exec_script calls. exec_script is
+# slow, especially on Windows, and can cause confusing effects. Although
+# individually each call isn't slow or necessarily very confusing, at the scale
+# of our repo things get out of hand quickly. By strongly pushing back on all
+# additions, we keep the build fast and clean. If you think you need to add a
+# new call, please consider:
+#
+# - Do not use a script to check for the existence of a file or directory to
+#   enable a different mode. Instead, use GN build args to enable or disable
+#   functionality and set options. An example is checking for a file in the
+#   src-internal repo to see if the corresponding src-internal feature should
+#   be enabled. There are several things that can go wrong with this:
+#
+#    - It's mysterious what causes some things to happen. Although in many cases
+#      such behavior can be conveniently automatic, GN optimizes for explicit
+#      and obvious behavior so people can more easily diagnose problems.
+#
+#    - The user can't enable a mode for one build and not another. With GN build
+#      args, the user can choose the exact configuration of multiple builds
+#      using one checkout. But implicitly basing flags on the state of the
+#      checkout, this functionality is broken.
+#
+#    - It's easy to get stale files. If for example the user edits the gclient
+#      to stop checking out src-internal (or any other optional thing), it's
+#      easy to end up with stale files still mysteriously triggering build
+#      conditions that are no longer appropriate (yes, this happens in real
+#      life).
+#
+# - Do not use a script to iterate files in a directory (glob):
+#
+#    - This has the same "stale file" problem as the above discussion. Various
+#      operations can leave untracked files in the source tree which can cause
+#      surprising effects.
+#
+#    - It becomes impossible to use "git grep" to find where a certain file is
+#      referenced. This operation is very common and people really do get
+#      confused when things aren't listed.
+#
+#    - It's easy to screw up. One common case is a build-time script that packs
+#      up a directory. The author notices that the script isn't re-run when the
+#      directory is updated, so adds a glob so all the files are listed as
+#      inputs. This seems to work great... until a file is deleted. When a
+#      file is deleted, all the inputs the glob lists will still be up to date
+#      and no command-lines will have been changed. The action will not be
+#      re-run and the build will be broken. It is possible to get this correct
+#      using glob, and it's possible to mess it up without glob, but globs make
+#      this situation much easier to create. if the build always lists the
+#      files and passes them to a script, it will always be correct.
+
+exec_script_whitelist =
+    build_dotfile_settings.exec_script_whitelist +
+    angle_dotfile_settings.exec_script_whitelist +
+    [
+      # Whitelist entries for //build should go into
+      # //build/dotfile_settings.gni instead, so that they can be shared
+      # with other repos. The entries in this list should be only for files
+      # in the Chromium repo outside of //build.
+      "//build_overrides/build.gni",
+
+      # TODO(dgn): Layer violation but breaks the build otherwise, see
+      # https://crbug.com/474506.
+      "//clank/java/BUILD.gn",
+      "//clank/native/BUILD.gn",
+
+      "//google_apis/BUILD.gn",
+      "//printing/BUILD.gn",
+
+      "//remoting/host/installer/linux/BUILD.gn",
+      "//remoting/remoting_version.gni",
+      "//remoting/host/installer/win/generate_clsids.gni",
+
+      "//tools/grit/grit_rule.gni",
+    ]

src/LICENSE

@@ -0,0 +1,27 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

src/android_webview/apk/BUILD.gn

@@ -0,0 +1,15 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+# Since Monochrome has its own content provider, these two files are put
+# in two different targets.
+android_library("webview_license_provider_java") {
+  java_files = [ "//android_webview/apk/java/src/com/android/webview/chromium/LicenseContentProvider.java" ]
+}
+
+android_library("webview_license_activity_java") {
+  java_files = [ "//android_webview/apk/java/src/com/android/webview/chromium/LicenseActivity.java" ]
+}

src/android_webview/browser/gfx/BUILD.gn

@@ -0,0 +1,66 @@
+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+source_set("gfx") {
+  sources = [
+    "aw_draw_fn_impl.cc",
+    "aw_draw_fn_impl.h",
+    "aw_gl_functor.cc",
+    "aw_gl_functor.h",
+    "aw_gl_surface.cc",
+    "aw_gl_surface.h",
+    "aw_picture.cc",
+    "aw_picture.h",
+    "aw_render_thread_context_provider.cc",
+    "aw_render_thread_context_provider.h",
+    "browser_view_renderer.cc",
+    "browser_view_renderer.h",
+    "browser_view_renderer_client.h",
+    "child_frame.cc",
+    "child_frame.h",
+    "compositor_frame_consumer.h",
+    "compositor_frame_producer.h",
+    "compositor_id.cc",
+    "compositor_id.h",
+    "deferred_gpu_command_service.cc",
+    "deferred_gpu_command_service.h",
+    "hardware_renderer.cc",
+    "hardware_renderer.h",
+    "java_browser_view_renderer_helper.cc",
+    "java_browser_view_renderer_helper.h",
+    "parent_compositor_draw_constraints.cc",
+    "parent_compositor_draw_constraints.h",
+    "parent_output_surface.cc",
+    "parent_output_surface.h",
+    "render_thread_manager.cc",
+    "render_thread_manager.h",
+    "scoped_app_gl_state_restore.cc",
+    "scoped_app_gl_state_restore.h",
+    "surfaces_instance.cc",
+    "surfaces_instance.h",
+  ]
+
+  deps = [
+    "//android_webview:native_jni",
+    "//base",
+    "//content/public/browser",
+    "//gpu/command_buffer/client:gles2_implementation",
+    "//gpu/command_buffer/service",
+    "//gpu/ipc:gl_in_process_context",
+    "//gpu/ipc/common:common",
+    "//gpu/skia_bindings",
+    "//gpu/vulkan:vulkan",
+    "//gpu/vulkan/init",
+    "//services/viz/public/interfaces",
+    "//skia",
+    "//ui/gfx",
+    "//ui/gl",
+    "//ui/gl/init",
+  ]
+
+  libs = [ "jnigraphics" ]
+}

src/android_webview/glue/BUILD.gn

@@ -0,0 +1,72 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//android_webview/system_webview_apk_tmpl.gni")
+import("//android_webview/variables.gni")
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+import("generate_resource_rewriter.gni")
+import("glue.gni")
+
+generate_resource_rewriter("glue_resource_rewriter") {
+  # Change deps? please modify glue_library_deps variable.
+  deps = glue_library_deps
+  package_name = "com.android.webview.chromium"
+}
+
+android_library("glue") {
+  # Change deps? please modify glue_library_deps variable.
+  deps = glue_library_deps
+  srcjar_deps = [ ":glue_resource_rewriter" ]
+
+  alternative_android_sdk_dep =
+      "//third_party/android_system_sdk:public_framework_system_java"
+
+  java_files = [
+    "java/src/com/android/webview/chromium/CallbackConverter.java",
+    "java/src/com/android/webview/chromium/ContentSettingsAdapter.java",
+    "java/src/com/android/webview/chromium/CookieManagerAdapter.java",
+    "java/src/com/android/webview/chromium/DrawFunctor.java",
+    "java/src/com/android/webview/chromium/DrawGLFunctor.java",
+    "java/src/com/android/webview/chromium/GeolocationPermissionsAdapter.java",
+    "java/src/com/android/webview/chromium/GlueApiHelperForM.java",
+    "java/src/com/android/webview/chromium/GlueApiHelperForN.java",
+    "java/src/com/android/webview/chromium/GlueApiHelperForO.java",
+    "java/src/com/android/webview/chromium/GlueApiHelperForOMR1.java",
+    "java/src/com/android/webview/chromium/GlueApiHelperForP.java",
+    "java/src/com/android/webview/chromium/GraphicsUtils.java",
+    "java/src/com/android/webview/chromium/MonochromeLibraryPreloader.java",
+    "java/src/com/android/webview/chromium/SafeBrowsingResponseAdapter.java",
+    "java/src/com/android/webview/chromium/ServiceWorkerClientAdapter.java",
+    "java/src/com/android/webview/chromium/ServiceWorkerControllerAdapter.java",
+    "java/src/com/android/webview/chromium/ServiceWorkerSettingsAdapter.java",
+    "java/src/com/android/webview/chromium/SharedStatics.java",
+    "java/src/com/android/webview/chromium/SharedTracingControllerAdapter.java",
+    "java/src/com/android/webview/chromium/SplitApkWorkaround.java",
+    "java/src/com/android/webview/chromium/TracingControllerAdapter.java",
+    "java/src/com/android/webview/chromium/WebBackForwardListChromium.java",
+    "java/src/com/android/webview/chromium/WebHistoryItemChromium.java",
+    "java/src/com/android/webview/chromium/WebIconDatabaseAdapter.java",
+    "java/src/com/android/webview/chromium/WebMessagePortAdapter.java",
+    "java/src/com/android/webview/chromium/WebResourceErrorAdapter.java",
+    "java/src/com/android/webview/chromium/WebResourceRequestAdapter.java",
+    "java/src/com/android/webview/chromium/WebStorageAdapter.java",
+    "java/src/com/android/webview/chromium/WebkitToSharedGlueConverter.java",
+    "java/src/com/android/webview/chromium/WebViewApplication.java",
+    "java/src/com/android/webview/chromium/WebViewChromiumAwInit.java",
+    "java/src/com/android/webview/chromium/WebViewChromium.java",
+    "java/src/com/android/webview/chromium/WebViewChromiumFactoryProvider.java",
+    "java/src/com/android/webview/chromium/WebViewChromiumFactoryProviderForO.java",
+    "java/src/com/android/webview/chromium/WebViewChromiumFactoryProviderForOMR1.java",
+    "java/src/com/android/webview/chromium/WebViewChromiumFactoryProviderForP.java",
+    "java/src/com/android/webview/chromium/SharedWebViewChromium.java",
+    "java/src/com/android/webview/chromium/SharedWebViewContentsClientAdapter.java",
+    "java/src/com/android/webview/chromium/SharedWebViewRendererClientAdapter.java",
+    "java/src/com/android/webview/chromium/WebViewContentsClientAdapter.java",
+    "java/src/com/android/webview/chromium/WebViewDatabaseAdapter.java",
+    "java/src/com/android/webview/chromium/WebViewDelegateFactory.java",
+  ]
+
+  android_manifest_for_lint = system_webview_android_manifest
+}

src/android_webview/glue/generate_resource_rewriter.gni

@@ -0,0 +1,55 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+# Generate ResourceRewriter.java from Android Libraries according the dep
+# graph.
+# Argument:
+#   deps
+#     The same deps of target that uses the generated ResourceRewriter.
+#   package_name
+#     The package name of ResourceRewriter.java.
+#
+# This target generates a single srcjar containing generated
+# ResourceRewrite.java which will list the R classes generated by all the
+# Android libraries reachabled from the target specified in deps. Add this
+# target to srcjar_deps of android_library will call  ResourceRewriter.
+#
+template("generate_resource_rewriter") {
+  set_sources_assignment_filter([])
+  assert(defined(invoker.package_name))
+
+  _final_target_name = target_name
+  _build_config = "$target_gen_dir/${target_name}.build_config"
+  _build_config_target_name = "$target_name$build_config_target_suffix"
+  _srcjar = "$target_gen_dir/${target_name}.srcjar"
+  write_build_config(_build_config_target_name) {
+    possible_config_deps = invoker.deps
+    type = "resource_rewriter"
+    build_config = _build_config
+  }
+
+  action(_final_target_name) {
+    forward_variables_from(invoker, [ "visibility" ])
+    inputs = [
+      _build_config,
+    ]
+    deps = invoker.deps + [ ":${_build_config_target_name}" ]
+    script = "//build/android/gyp/generate_resource_rewriter.py"
+
+    _rebased_build_config = rebase_path(_build_config, root_build_dir)
+    args = [
+      "--package-name",
+      invoker.package_name,
+      "--dep-packages",
+      "@FileArg($_rebased_build_config:resources:extra_package_names)",
+      "--srcjar",
+      rebase_path(_srcjar, root_build_dir),
+    ]
+    outputs = [
+      _srcjar,
+    ]
+  }
+}

src/android_webview/glue/glue.gni

@@ -0,0 +1,21 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This variable shared between 'glue' and 'glue_resource_rewriter' because
+# ResourceRewrite.java need to be generated according 'glue' deps.
+glue_library_deps = [
+  "//android_webview:android_webview_java",
+  "//android_webview:android_webview_commandline_java",
+  "//android_webview:android_webview_platform_services_java",
+  "//android_webview:system_webview_manifest",
+  "//android_webview/support_library/boundary_interfaces:boundary_interface_java",
+  "//android_webview/support_library/callback:callback_java",
+  "//base:base_java",
+  "//components/autofill/android:autofill_java",
+  "//components/autofill/android:provider_java",
+  "//components/embedder_support/android:application_java",
+  "//content/public/android:content_java",
+  "//net/android:net_java",
+  "//ui/android:ui_java",
+]

src/android_webview/proto/BUILD.gn

@@ -0,0 +1,10 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+proto_java_library("aw_variations_seed_proto_java") {
+  proto_path = "."
+  sources = [ "aw_variations_seed.proto" ]
+}

src/android_webview/support_library/BUILD.gn

@@ -0,0 +1,37 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("support_lib_glue_java") {
+  java_files = [
+    "java/src/org/chromium/support_lib_glue/IsomorphicAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibProxyControllerAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibReflectionUtil.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibServiceWorkerClientAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibServiceWorkerControllerAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibServiceWorkerSettingsAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibTracingControllerAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebMessageCallbackAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebMessagePortAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebResourceRequest.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebSettingsAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebViewChromium.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebViewChromiumFactory.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebViewRendererAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebViewRendererClientAdapter.java",
+    "java/src/org/chromium/support_lib_glue/SupportLibWebkitToCompatConverterAdapter.java",
+  ]
+
+  deps = [
+    "//android_webview:android_webview_commandline_java",
+    "//android_webview:android_webview_java",
+    "//android_webview/glue:glue",
+    "//android_webview/support_library/boundary_interfaces:boundary_interface_java",
+    "//android_webview/support_library/callback:callback_java",
+    "//base:base_java",
+    "//content/public/android:content_java",
+  ]
+}

src/android_webview/support_library/boundary_interfaces/BUILD.gn

@@ -0,0 +1,45 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("boundary_interface_java") {
+  java_files = [
+    "src/org/chromium/support_lib_boundary/FeatureFlagHolderBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/IsomorphicObjectBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/ProxyControllerBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/SafeBrowsingResponseBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/ServiceWorkerClientBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/ServiceWorkerControllerBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/ServiceWorkerWebSettingsBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/StaticsBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/TracingControllerBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/VisualStateCallbackBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebkitToCompatConverterBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebMessageBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebMessageCallbackBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebMessagePortBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebResourceErrorBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebResourceRequestBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebSettingsBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebViewClientBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebViewProviderBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebViewProviderFactoryBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebViewRendererBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/WebViewRendererClientBoundaryInterface.java",
+    "src/org/chromium/support_lib_boundary/util/BoundaryInterfaceReflectionUtil.java",
+    "src/org/chromium/support_lib_boundary/util/Features.java",
+  ]
+
+  proguard_configs = [ "proguard.flags" ]
+
+  # We can't use ANY deps here, the support library should be able to build
+  # these interfaces without any other chromium dependencies.
+  deps = []
+
+  # This is to verify the boundary interfaces compile and lint correctly against
+  # the minSdkVersion of the webkit support library module.
+  android_manifest_for_lint = "AndroidManifest.xml"
+}

src/android_webview/support_library/callback/BUILD.gn

@@ -0,0 +1,21 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("callback_java") {
+  java_files = [
+    "java/src/org/chromium/support_lib_callback_glue/SupportLibSafeBrowsingResponse.java",
+    "java/src/org/chromium/support_lib_callback_glue/SupportLibWebResourceError.java",
+    "java/src/org/chromium/support_lib_callback_glue/SupportLibWebViewContentsClientAdapter.java",
+  ]
+
+  deps = [
+    "//android_webview:android_webview_commandline_java",
+    "//android_webview:android_webview_java",
+    "//android_webview/support_library/boundary_interfaces:boundary_interface_java",
+    "//base:base_java",
+  ]
+}

src/android_webview/system_webview_apk_tmpl.gni

@@ -0,0 +1,136 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//base/android/proguard/proguard.gni")
+import("//build/config/android/chrome_version.gni")
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+import("//build/config/locales.gni")
+import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
+
+template("system_webview_apk_tmpl") {
+  android_apk(target_name) {
+    forward_variables_from(invoker, "*")
+
+    deps += [
+      "//android_webview:license_assets",
+      "//android_webview:locale_pak_assets",
+      "//android_webview:pak_file_assets",
+      "//android_webview/apk:webview_license_activity_java",
+      "//android_webview/apk:webview_license_provider_java",
+      "//android_webview/glue",
+      "//android_webview/support_library:support_lib_glue_java",
+      "//base:base_java",
+    ]
+
+    if (!defined(alternative_android_sdk_dep)) {
+      alternative_android_sdk_dep = webview_framework_dep
+    }
+
+    shared_resources = true
+
+    _use_trichrome_library =
+        defined(use_trichrome_library) && use_trichrome_library
+
+    if (!_use_trichrome_library || !trichrome_shared_assets) {
+      deps += [ "//android_webview:monochrome_webview_assets" ]
+    }
+
+    if (!_use_trichrome_library) {
+      shared_libraries = [ "//android_webview:libwebviewchromium" ]
+      deps += [
+        "//third_party/crashpad/crashpad/handler:crashpad_handler_trampoline",
+      ]
+      loadable_modules = [ "$root_out_dir/libcrashpad_handler_trampoline.so" ]
+
+      if (build_apk_secondary_abi && android_64bit_target_cpu) {
+        secondary_abi_shared_libraries = [ "//android_webview:libwebviewchromium($android_secondary_abi_toolchain)" ]
+        _trampoline = "//third_party/crashpad/crashpad/handler:crashpad_handler_trampoline($android_secondary_abi_toolchain)"
+        deps += [ _trampoline ]
+        _secondary_out_dir = get_label_info(_trampoline, "root_out_dir")
+        secondary_abi_loadable_modules =
+            [ "$_secondary_out_dir/libcrashpad_handler_trampoline.so" ]
+      }
+    } else {
+      uncompress_shared_libraries = true
+
+      # Include placeholder libraries to ensure we are treated as the desired
+      # architecture.
+      if (android_64bit_target_cpu) {
+        shared_libraries = [ "//android_webview:monochrome" ]
+        deps += [
+          "//third_party/crashpad/crashpad/handler:crashpad_handler_trampoline",
+        ]
+        loadable_modules = [ "$root_out_dir/libcrashpad_handler_trampoline.so" ]
+
+        if (build_apk_secondary_abi) {
+          secondary_native_lib_placeholders = [ "libdummy.so" ]
+          if (use_v8_context_snapshot) {
+            deps += [ "//tools/v8_context_snapshot:v8_context_snapshot_assets" ]
+          } else {
+            deps += [ "//v8:v8_external_startup_data_assets" ]
+          }
+        }
+      } else {
+        native_lib_placeholders = [ "libdummy.so" ]
+      }
+    }
+
+    if (!_use_trichrome_library || android_64bit_target_cpu) {
+      # 32-bit TrichromeWebView doesn't have a native library, so only do this
+      # for other configs.
+      native_lib_version_rule = "//build/util:chrome_version_json"
+      _native_lib_file =
+          rebase_path("$root_gen_dir/CHROME_VERSION.json", root_out_dir)
+      native_lib_version_arg = "@FileArg($_native_lib_file:full-quoted)"
+    }
+
+    aapt_locale_whitelist = locales
+
+    resource_blacklist_regex = "[/-]xxxhdpi[/-]"
+
+    # Exception rationale in https://crbug.com/691733.
+    resource_blacklist_exceptions = [
+      "*shadow*",  # Combination of gradient & transparency cause pixelation.
+      "*.9.*",  # Most nine-patches contain shadows.
+    ]
+
+    # Used as an additional apk in test scripts.
+    never_incremental = true
+
+    if (is_java_debug) {
+      enable_multidex = true
+    } else {
+      proguard_enabled = true
+      if (!defined(proguard_configs)) {
+        proguard_configs = []
+      }
+      proguard_configs += [
+        "//android_webview/apk/java/proguard.flags",
+        "//base/android/proguard/chromium_apk.flags",
+        "//base/android/proguard/chromium_code.flags",
+      ]
+      if (enable_proguard_obfuscation) {
+        proguard_configs +=
+            [ "//base/android/proguard/enable_obfuscation.flags" ]
+      } else {
+        proguard_configs +=
+            [ "//base/android/proguard/disable_all_obfuscation.flags" ]
+      }
+      png_to_webp = true
+    }
+    command_line_flags_file = "webview-command-line"
+
+    if (!defined(version_code)) {
+      if (_use_trichrome_library) {
+        version_code = trichrome_version_code
+      } else {
+        version_code = webview_version_code
+      }
+    }
+    if (!defined(version_name)) {
+      version_name = chrome_version_name
+    }
+  }
+}

src/android_webview/test/BUILD.gn

@@ -0,0 +1,386 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+import("//device/vr/buildflags/buildflags.gni")
+import("//testing/test.gni")
+import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
+
+# Mark all targets as test only.
+testonly = true
+
+group("test") {
+  deps = [
+    ":android_webview_unittests",
+    ":webview_instrumentation_test_apk",
+  ]
+}
+
+if (public_android_sdk) {
+  group("webview_cts_tests") {
+    _py_files =
+        read_file("//android_webview/tools/run_cts.pydeps", "list lines")
+    deps = [
+      "//android_webview:system_webview_apk",
+    ]
+
+    data_deps = [
+      "//build/android:logdog_wrapper_py",
+      "//build/android:test_runner_py",
+      "//testing/buildbot/filters:webview_cts_tests_filters",
+    ]
+
+    # Filter out comments.
+    set_sources_assignment_filter([ "#*" ])
+    sources = _py_files
+
+    data = sources
+    data += [ "//android_webview/tools/cts_config/" ]
+  }
+}
+
+android_apk("webview_instrumentation_apk") {
+  deps = [
+    ":android_webview_apk_assets",
+    ":android_webview_apk_resources",
+    "//android_webview:android_webview_java",
+    "//android_webview:locale_pak_assets",
+    "//android_webview:platform_service_bridge_upstream_implementation_java",
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//components/heap_profiling:heap_profiling_java_test_support",
+    "//components/policy/android:policy_java_test_support",
+    "//content/public/android:content_java",
+    "//third_party/android_support_test_runner:runner_java",
+    "//third_party/junit",
+    "//ui/android:ui_java",
+  ]
+
+  apk_name = "WebViewInstrumentation"
+  android_manifest = "shell/AndroidManifest.xml"
+  java_files = [
+    "shell/src/org/chromium/android_webview/shell/AwShellActivity.java",
+    "shell/src/org/chromium/android_webview/shell/AwShellApplication.java",
+    "shell/src/org/chromium/android_webview/shell/AwShellResourceProvider.java",
+    "shell/src/org/chromium/android_webview/shell/AwShellSwitches.java",
+    "shell/src/org/chromium/android_webview/shell/DrawFn.java",
+    "shell/src/org/chromium/android_webview/test/AwTestContainerView.java",
+    "shell/src/org/chromium/android_webview/test/AwTestRunnerActivity.java",
+    "shell/src/org/chromium/android_webview/test/AwJUnit4ClassRunner.java",
+    "shell/src/org/chromium/android_webview/test/NullContentsClient.java",
+    "shell/src/org/chromium/android_webview/test/SecondBrowserProcess.java",
+    "shell/src/org/chromium/android_webview/test/OnlyRunIn.java",
+    "shell/src/org/chromium/android_webview/test/TestContentProvider.java",
+  ]
+
+  shared_libraries = [ ":libstandalonelibwebviewchromium" ]
+
+  native_lib_version_rule = "//build/util:chrome_version_json"
+  _native_lib_file =
+      rebase_path("$root_gen_dir/CHROME_VERSION.json", root_build_dir)
+  native_lib_version_arg = "@FileArg($_native_lib_file:full-quoted)"
+
+  enable_multidex = true
+
+  command_line_flags_file = "android-webview-command-line"
+}
+
+android_resources("android_webview_apk_resources") {
+  resource_dirs = [ "shell/res" ]
+  custom_package = "org.chromium.android_webview.shell"
+}
+
+android_assets("android_webview_apk_assets") {
+  deps = [
+    "//android_webview:pak_file_assets",
+    "//third_party/icu:icu_assets",
+  ]
+
+  sources = [
+    "shell/assets/asset_file.html",
+    "shell/assets/asset_icon.png",
+    "shell/assets/autofill.html",
+    "shell/assets/cookie_test.html",
+    "shell/assets/full_screen_video.js",
+    "shell/assets/full_screen_video_inside_div_test.html",
+    "shell/assets/full_screen_video_test.html",
+    "shell/assets/full_screen_video_test_not_preloaded.html",
+    "shell/assets/key-system-test.html",
+    "shell/assets/platform-media-codec-test.html",
+    "shell/assets/star.svg",
+    "shell/assets/star.svgz",
+    "shell/assets/video.3gp",
+    "shell/assets/video.webm",
+    "shell/assets/visual_state_during_fullscreen_test.html",
+    "shell/assets/visual_state_on_page_commit_visible_test.html",
+    "shell/assets/visual_state_waits_for_js_detached_test.html",
+    "shell/assets/visual_state_waits_for_js_test.html",
+    "shell/assets/webvr_not_functional_test.html",
+  ]
+
+  if (use_v8_context_snapshot) {
+    deps += [ "//tools/v8_context_snapshot:v8_context_snapshot_assets" ]
+  } else {
+    deps += [ "//v8:v8_external_startup_data_assets" ]
+  }
+}
+
+shared_library("libstandalonelibwebviewchromium") {
+  testonly = true
+  sources = [
+    "../lib/webview_entry_point.cc",
+    "shell/src/draw_gl/draw_fn.cc",
+  ]
+  ldflags = [ "-Wl,-shared,-Bsymbolic" ]
+  deps = [
+    "//android_webview:common",
+    "//base",
+    "//components/heap_profiling:test_support",
+    "//components/minidump_uploader",
+    "//content/public/test/android:content_native_test_support",
+  ]
+  configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
+  configs += [ "//build/config/android:hide_all_but_jni" ]
+}
+
+instrumentation_test_apk("webview_instrumentation_test_apk") {
+  apk_name = "WebViewInstrumentationTest"
+  apk_under_test = ":webview_instrumentation_apk"
+  android_manifest = "../javatests/AndroidManifest.xml"
+  deps = [
+    "//android_webview:android_webview_java",
+    "//android_webview:android_webview_platform_services_java",
+    "//android_webview:android_webview_services_java",
+    "//android_webview:aw_variations_seed_server_aidl",
+    "//android_webview/test/embedded_test_server:aw_net_java_test_support",
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//components/autofill/android:provider_java",
+    "//components/embedder_support/android:web_contents_delegate_java",
+    "//components/minidump_uploader:minidump_uploader_java",
+    "//components/minidump_uploader:minidump_uploader_javatests",
+    "//components/policy/android:policy_java",
+    "//components/policy/android:policy_java_test_support",
+    "//components/safe_browsing/android:safe_browsing_java",
+    "//content/public/android:content_java",
+    "//content/public/test/android:content_java_test_support",
+    "//mojo/public/java:bindings_java",
+    "//net/android:net_java",
+    "//net/android:net_java_test_support",
+    "//net/android:net_javatests",
+    "//services/device/public/java:geolocation_java",
+    "//services/device/public/java:geolocation_java_test_support",
+    "//third_party/android_support_test_runner:rules_java",
+    "//third_party/android_support_test_runner:runner_java",
+    "//third_party/junit",
+    "//ui/android:ui_java",
+  ]
+  java_files = [
+    "../javatests/src/org/chromium/android_webview/test/AcceptLanguageTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AndroidProtocolHandlerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AndroidScrollIntegrationTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AndroidViewIntegrationTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ArchiveTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwActivityTestRule.java",
+    "../javatests/src/org/chromium/android_webview/test/AwAutocompleteTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwAutofillTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsAnchorViewTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientAutoLoginTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientCallbackHelperTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientFaviconTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientFullScreenTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientGetDefaultVideoPosterTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientOnFormResubmissionTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientOnRendererUnresponsiveTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientOnRenderProcessGoneTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientOnScaleChangedTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientOnUnhandledKeyEventTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientShouldInterceptRequestTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientShouldOverrideUrlLoadingTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsClientVisitedHistoryTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsContainerViewTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsGarbageCollectionTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsLifecycleNotifierTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsRenderTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsStaticsTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwContentsTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwDebugTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwFormDatabaseTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwImeTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwLayoutSizerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwLegacyQuirksTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwNetworkConfigurationTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwPermissionManagerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwProxyControllerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwQuotaManagerBridgeTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwScrollOffsetManagerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwSecondBrowserProcessTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwServiceWorkerClientTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwSettingsTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwStrictModeTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwVariationsSeedFetcherTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwWebContentsObserverTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwZoomTest.java",
+    "../javatests/src/org/chromium/android_webview/test/CleanupReferenceTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClearHistoryTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientAddMessageToConsoleTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientOnPageFinishedTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientOnPageStartedTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientOnReceivedError2Test.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientOnReceivedErrorTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ClientOnReceivedHttpErrorTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ConsoleMessagesForBlockedLoadsTest.java",
+    "../javatests/src/org/chromium/android_webview/test/ContentViewMiscTest.java",
+    "../javatests/src/org/chromium/android_webview/test/CookieManagerStartupTest.java",
+    "../javatests/src/org/chromium/android_webview/test/CookieManagerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/DisableHardwareAccelerationForTest.java",
+    "../javatests/src/org/chromium/android_webview/test/FindAddressTest.java",
+    "../javatests/src/org/chromium/android_webview/test/FullScreenVideoTestAwContentsClient.java",
+    "../javatests/src/org/chromium/android_webview/test/GeolocationTest.java",
+    "../javatests/src/org/chromium/android_webview/test/GetTitleTest.java",
+    "../javatests/src/org/chromium/android_webview/test/HeapProfilingTest.java",
+    "../javatests/src/org/chromium/android_webview/test/HttpAuthDatabaseTest.java",
+    "../javatests/src/org/chromium/android_webview/test/KeySystemTest.java",
+    "../javatests/src/org/chromium/android_webview/test/LoadDataWithBaseUrlTest.java",
+    "../javatests/src/org/chromium/android_webview/test/LoadUrlTest.java",
+    "../javatests/src/org/chromium/android_webview/test/MediaAccessPermissionRequestTest.java",
+    "../javatests/src/org/chromium/android_webview/test/NavigationHistoryTest.java",
+    "../javatests/src/org/chromium/android_webview/test/OnDiskFileTest.java",
+    "../javatests/src/org/chromium/android_webview/test/PlatformMediaCodecTest.java",
+    "../javatests/src/org/chromium/android_webview/test/PolicyUrlFilteringTest.java",
+    "../javatests/src/org/chromium/android_webview/test/PopupWindowTest.java",
+    "../javatests/src/org/chromium/android_webview/test/PostMessageTest.java",
+    "../javatests/src/org/chromium/android_webview/test/RenderProcessGoneHelper.java",
+    "../javatests/src/org/chromium/android_webview/test/SaveRestoreStateTest.java",
+    "../javatests/src/org/chromium/android_webview/test/SafeBrowsingTest.java",
+    "../javatests/src/org/chromium/android_webview/test/AwUncaughtExceptionTest.java",
+    "../javatests/src/org/chromium/android_webview/test/SslPreferencesTest.java",
+    "../javatests/src/org/chromium/android_webview/test/StandaloneAwQuotaManagerBridgeTest.java",
+    "../javatests/src/org/chromium/android_webview/test/TestAwContents.java",
+    "../javatests/src/org/chromium/android_webview/test/TestAwContentsClient.java",
+    "../javatests/src/org/chromium/android_webview/test/TestAwServiceWorkerClient.java",
+    "../javatests/src/org/chromium/android_webview/test/UserAgentTest.java",
+    "../javatests/src/org/chromium/android_webview/test/VariationsSeedHolderTest.java",
+    "../javatests/src/org/chromium/android_webview/test/VariationsSeedLoaderTest.java",
+    "../javatests/src/org/chromium/android_webview/test/VariationsUtilsTest.java",
+    "../javatests/src/org/chromium/android_webview/test/VisualStateTest.java",
+    "../javatests/src/org/chromium/android_webview/test/WebKitHitTestTest.java",
+    "../javatests/src/org/chromium/android_webview/test/WebViewAsynchronousFindApisTest.java",
+    "../javatests/src/org/chromium/android_webview/test/WebViewFindApisTestRule.java",
+    "../javatests/src/org/chromium/android_webview/test/WebViewModalDialogOverrideTest.java",
+    "../javatests/src/org/chromium/android_webview/test/WebViewWebVrTest.java",
+    "../javatests/src/org/chromium/android_webview/test/services/CrashReceiverServiceTest.java",
+    "../javatests/src/org/chromium/android_webview/test/services/MinidumpUploaderTest.java",
+    "../javatests/src/org/chromium/android_webview/test/services/MockVariationsSeedServer.java",
+    "../javatests/src/org/chromium/android_webview/test/services/VariationsSeedServerTest.java",
+    "../javatests/src/org/chromium/android_webview/test/services/VisualStateCallbackTest.java",
+    "../javatests/src/org/chromium/android_webview/test/util/AwQuotaManagerBridgeTestUtil.java",
+    "../javatests/src/org/chromium/android_webview/test/util/AwTestTouchUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/CommonResources.java",
+    "../javatests/src/org/chromium/android_webview/test/util/CookieUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/GraphicsTestUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/ImagePageGenerator.java",
+    "../javatests/src/org/chromium/android_webview/test/util/JSUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/JavascriptEventObserver.java",
+    "../javatests/src/org/chromium/android_webview/test/util/VariationsTestUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/VideoSurfaceViewUtils.java",
+    "../javatests/src/org/chromium/android_webview/test/util/VideoTestUtil.java",
+    "../javatests/src/org/chromium/android_webview/test/util/VideoTestWebServer.java",
+  ]
+  data = [
+    "data/",
+  ]
+  data_deps = [
+    "//testing/buildbot/filters:webview_instrumentation_test_apk_filters",
+  ]
+
+  # We only want to bother including these on bots set up for VR testing
+  if (include_vr_data) {
+    data += [
+      "//chrome/android/shared_preference_files/test/",
+      "//third_party/gvr-android-sdk/test-apks/vr_services/vr_services_current.apk",
+    ]
+  }
+  additional_apks = [
+    "//android_webview/test/embedded_test_server:aw_net_test_support_apk",
+    "//net/android:net_test_support_apk",
+  ]
+}
+
+test("android_webview_unittests") {
+  # Dependencies (e.g. Play services) make the binary reach the dex limit.
+  enable_multidex = true
+
+  deps = [
+    ":android_webview_unittests_assets",
+    ":android_webview_unittests_java",
+    ":android_webview_unittests_jni",
+    "//android_webview:common",
+    "//base/test:test_support",
+    "//components/prefs:prefs",
+    "//components/prefs:test_support",
+    "//content:content",
+    "//content/test:test_support",
+    "//net:net",
+    "//net:test_support",
+    "//ui/base:ui_base_jni_headers",
+    "//ui/gl",
+    "//ui/gl:test_support",
+  ]
+
+  sources = [
+    "../browser/aw_content_browser_client_unittest.cc",
+    "../browser/aw_contents_client_bridge_unittest.cc",
+    "../browser/aw_form_database_service_unittest.cc",
+    "../browser/aw_media_url_interceptor_unittest.cc",
+    "../browser/aw_permission_manager_unittest.cc",
+    "../browser/aw_static_cookie_policy_unittest.cc",
+    "../browser/command_line_helper_unittest.cc",
+    "../browser/gfx/browser_view_renderer_unittest.cc",
+    "../browser/gfx/test/fake_window.cc",
+    "../browser/gfx/test/fake_window.h",
+    "../browser/gfx/test/rendering_test.cc",
+    "../browser/gfx/test/rendering_test.h",
+    "../browser/input_stream_unittest.cc",
+    "../browser/net/android_stream_reader_url_request_job_unittest.cc",
+    "../browser/net/aw_cookie_store_wrapper_unittest.cc",
+    "../browser/net/aw_url_request_context_getter_unittest.cc",
+    "../browser/net/input_stream_reader_unittest.cc",
+    "../browser/net_network_service/android_stream_reader_url_loader_unittest.cc",
+    "../browser/permission/media_access_permission_request_unittest.cc",
+    "../browser/permission/permission_request_handler_unittest.cc",
+    "../browser/renderer_host/auto_login_parser_unittest.cc",
+    "../browser/safe_browsing/aw_safe_browsing_whitelist_manager_unittest.cc",
+    "../browser/state_serializer_unittest.cc",
+    "../lib/webview_tests.cc",
+  ]
+}
+
+android_assets("android_webview_unittests_assets") {
+  sources = [
+    "unittest/assets/asset_file.ogg",
+  ]
+}
+
+android_library("android_webview_unittests_java") {
+  testonly = true
+  deps = [
+    "//android_webview:android_webview_java",
+    "//base:base_java",
+    "//content/public/test/android:content_java_test_support",
+  ]
+  java_files = [
+    "../unittestjava/src/org/chromium/android_webview/unittest/InputStreamUnittest.java",
+    "../unittestjava/src/org/chromium/android_webview/unittest/MockAwContentsClientBridge.java",
+  ]
+}
+
+generate_jni("android_webview_unittests_jni") {
+  jni_package = "android_webview_unittests"
+  sources = [
+    "../unittestjava/src/org/chromium/android_webview/unittest/InputStreamUnittest.java",
+    "../unittestjava/src/org/chromium/android_webview/unittest/MockAwContentsClientBridge.java",
+  ]
+}

src/android_webview/test/embedded_test_server/BUILD.gn

@@ -0,0 +1,71 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("aw_net_java_test_support") {
+  testonly = true
+  java_files = [
+    "java/src/org/chromium/android_webview/test/AwEmbeddedTestServer.java",
+    "java/src/org/chromium/android_webview/test/AwEmbeddedTestServerImpl.java",
+    "java/src/org/chromium/android_webview/test/AwEmbeddedTestServerService.java",
+  ]
+  deps = [
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//net/android:embedded_test_server_aidl_java",
+    "//net/android:net_java",
+    "//net/android:net_java_test_support",
+    "//net/android:net_java_test_support_provider",
+  ]
+}
+
+generate_jni("aw_net_jni_headers") {
+  sources = [
+    "java/src/org/chromium/android_webview/test/AwEmbeddedTestServerImpl.java",
+  ]
+  jni_package = "android_webview/test"
+}
+
+source_set("aw_java_test_native_support") {
+  testonly = true
+  sources = [
+    "../../../net/test/embedded_test_server/android/embedded_test_server_android.cc",
+    "../../../net/test/embedded_test_server/android/embedded_test_server_android.h",
+    "aw_embedded_test_server.cc",
+    "aw_test_entry_point.cc",
+  ]
+  deps = [
+    "//net:test_support",
+  ]
+  public_deps = [
+    ":aw_net_jni_headers",
+    "//net:net_test_jni_headers",
+  ]
+}
+
+shared_library("aw_net_java_test_native_support") {
+  testonly = true
+  deps = [
+    ":aw_java_test_native_support",
+    "//net:test_support",
+  ]
+  configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
+  configs += [ "//build/config/android:hide_all_but_jni" ]
+}
+
+android_apk("aw_net_test_support_apk") {
+  testonly = true
+
+  # Used as an additional_apk in test scripts.
+  never_incremental = true
+  deps = [
+    ":aw_net_java_test_support",
+    "//base:base_java",
+  ]
+  android_manifest = "java/AndroidManifest.xml"
+  apk_name = "ChromiumNetTestAwSupport"
+  shared_libraries = [ ":aw_net_java_test_native_support" ]
+}

src/android_webview/tools/automated_ui_tests/BUILD.gn

@@ -0,0 +1,72 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+import("//testing/test.gni")
+
+group("webview_ui_test_app") {
+  testonly = true
+  deps = [
+    ":webview_ui_test_app_apk",
+    ":webview_ui_test_app_test_apk",
+  ]
+}
+
+android_apk("webview_ui_test_app_apk") {
+  apk_name = "WebViewUiTestApp"
+  android_manifest = "java/AndroidManifest.xml"
+  deps = [
+    ":webview_ui_test_app_apk_resources",
+    ":webview_ui_test_app_java",
+  ]
+}
+
+android_library("webview_ui_test_app_java") {
+  java_files =
+      [ "java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java" ]
+  deps = [
+    ":webview_ui_test_app_apk_resources",
+    "//base:base_java",
+  ]
+
+  android_manifest_for_lint = "java/AndroidManifest.xml"
+}
+
+android_resources("webview_ui_test_app_apk_resources") {
+  resource_dirs = [ "java/res" ]
+  custom_package = "org.chromium.webview_ui_test"
+}
+
+instrumentation_test_apk("webview_ui_test_app_test_apk") {
+  apk_name = "WebViewUiTestAppTest"
+  apk_under_test = ":webview_ui_test_app_apk"
+  android_manifest = "javatests/AndroidManifest.xml"
+  java_files = [
+    "javatests/src/org/chromium/webview_ui_test/test/ActionModeTest.java",
+    "javatests/src/org/chromium/webview_ui_test/test/DropDownListTest.java",
+    "javatests/src/org/chromium/webview_ui_test/test/WebViewJSTest.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/Actions.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/Atoms.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/UseLayout.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/WebViewUiTestRule.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/WebViewSyncWrapper.java",
+  ]
+  deps = [
+    ":webview_ui_test_app_apk_resources",
+    ":webview_ui_test_app_java",
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//third_party/android_deps:android_support_annotations_java",
+    "//third_party/android_support_test_runner:rules_java",
+    "//third_party/android_support_test_runner:runner_java",
+    "//third_party/android_tools:android_test_base_java",
+    "//third_party/espresso:espresso_all_java",
+    "//third_party/hamcrest:hamcrest_java",
+    "//third_party/junit",
+    "//third_party/ub-uiautomator:ub_uiautomator_java",
+  ]
+  data = [
+    "test/data/",
+  ]
+}

src/android_webview/tools/system_webview_shell/BUILD.gn

@@ -0,0 +1,91 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+import("//testing/test.gni")
+
+# Mark all targets as test only.
+testonly = true
+
+group("system_webview_shell") {
+  deps = [
+    ":system_webview_shell_apk",
+    ":system_webview_shell_layout_test_apk",
+    ":system_webview_shell_page_cycler_apk",
+  ]
+}
+
+android_apk("system_webview_shell_apk") {
+  apk_name = "SystemWebViewShell"
+  java_files = [
+    "apk/src/org/chromium/webview_shell/JankActivity.java",
+    "apk/src/org/chromium/webview_shell/PageCyclerTestActivity.java",
+    "apk/src/org/chromium/webview_shell/StartupTimeActivity.java",
+    "apk/src/org/chromium/webview_shell/TelemetryActivity.java",
+    "apk/src/org/chromium/webview_shell/TelemetryMemoryPressureActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewAnimationTestActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewBrowserActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewLayoutTestActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewThreadTestActivity.java",
+    "apk/src/org/chromium/webview_shell/WebViewTracingActivity.java",
+  ]
+  android_manifest = "apk/AndroidManifest.xml"
+  deps = [
+    ":system_webview_shell_apk_resources",
+    "//base:base_java",
+  ]
+}
+
+android_resources("system_webview_shell_apk_resources") {
+  resource_dirs = [ "apk/res" ]
+  custom_package = "org.chromium.webview_shell"
+}
+
+instrumentation_test_apk("system_webview_shell_page_cycler_apk") {
+  apk_name = "SystemWebViewShellPageCycler"
+  apk_under_test = ":system_webview_shell_apk"
+  android_manifest = "page_cycler/AndroidManifest.xml"
+  java_files = [ "page_cycler/src/org/chromium/webview_shell/page_cycler/PageCyclerTest.java" ]
+  deps = [
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//content/public/android:content_java",
+    "//content/public/test/android:content_java_test_support",
+    "//testing/android/reporter:reporter_java",
+    "//third_party/android_support_test_runner:rules_java",
+    "//third_party/android_support_test_runner:runner_java",
+    "//third_party/junit",
+  ]
+  enable_multidex = true
+}
+
+instrumentation_test_apk("system_webview_shell_layout_test_apk") {
+  apk_name = "SystemWebViewShellLayoutTest"
+  apk_under_test = ":system_webview_shell_apk"
+  android_manifest = "layout_tests/AndroidManifest.xml"
+  java_files = [
+    "layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTest.java",
+    "layout_tests/src/org/chromium/webview_shell/test/WebViewThreadTest.java",
+  ]
+  deps = [
+    "//base:base_java",
+    "//base:base_java_test_support",
+    "//testing/android/reporter:reporter_java",
+    "//third_party/android_support_test_runner:rules_java",
+    "//third_party/android_support_test_runner:runner_java",
+    "//third_party/junit",
+  ]
+  data = [
+    "test/data/",
+    "//third_party/blink/web_tests/platform/linux/virtual/stable/webexposed/",
+    "//third_party/blink/web_tests/platform/mac/virtual/stable/webexposed/",
+    "//third_party/blink/web_tests/platform/win/virtual/stable/webexposed/",
+    "//third_party/blink/web_tests/resources/global-interface-listing.js",
+    "//third_party/blink/web_tests/virtual/stable/webexposed/",
+    "//third_party/blink/web_tests/webexposed/global-interface-listing.html",
+    "//third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt",
+  ]
+  additional_apks = [ system_webview_apk_target ]
+}

src/android_webview/tools/webview_log_verbosifier/BUILD.gn

@@ -0,0 +1,10 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+android_apk("webview_log_verbosifier_apk") {
+  apk_name = "WebViewLogVerbosifier"
+  android_manifest = "AndroidManifest.xml"
+}

src/android_webview/variables.gni

@@ -0,0 +1,13 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+system_webview_android_manifest =
+    "$root_gen_dir/android_webview/system_webview_apk/AndroidManifest.xml"
+trichrome_webview_android_manifest =
+    "$root_gen_dir/android_webview/trichrome_webview_apk/AndroidManifest.xml"
+
+upstream_only_webview_deps = [
+  "//android_webview:platform_service_bridge_upstream_implementation_java",
+  "//android_webview:system_webview_resources",
+]

src/android_webview/webview_repack_locales.gni

@@ -0,0 +1,35 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/repack.gni")
+import("webview_repack_locales_list.gni")
+
+# Wraps repack_locales(), setting the source_patterns and deps required for
+# Chrome.
+template("webview_repack_locales") {
+  repack_locales(target_name) {
+    forward_variables_from(invoker, "*")
+    if (!defined(deps)) {
+      deps = []
+    }
+
+    # Adding webview specific pak file? You should add it to
+    # webview_repack_locales_source_patterns, so it is also included in
+    # Monochrome.
+
+    source_patterns = [
+      "${root_gen_dir}/android_webview/components_strings_",
+      "${root_gen_dir}/content/app/strings/content_strings_",
+      "${root_gen_dir}/ui/strings/app_locale_settings_",
+    ]
+    deps += [
+      "//android_webview:generate_components_strings",
+      "//content/app/strings",
+      "//ui/strings:app_locale_settings",
+    ]
+    source_patterns += webview_repack_locales_source_patterns
+    deps += webview_repack_locales_deps
+    output_dir = "$root_out_dir/android_webview/locales"
+  }
+}

src/android_webview/webview_repack_locales_list.gni

@@ -0,0 +1,10 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# For how to add pattern, see additional_source_patterns argument of
+# _repack_one_locale in chrome/chrome_repack_locales.gni.
+webview_repack_locales_source_patterns =
+    [ "${root_gen_dir}/android_webview/aw_strings_" ]
+
+webview_repack_locales_deps = [ "//android_webview:generate_aw_strings" ]

src/apps/BUILD.gn

@@ -0,0 +1,64 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/features.gni")
+import("//build/config/ui.gni")
+import("//extensions/buildflags/buildflags.gni")
+
+assert(!is_android && !is_ios)
+assert(enable_extensions,
+       "Cannot depend on extensions because enable_extensions=false.")
+
+static_library("apps") {
+  sources = []
+
+  sources += [
+    "app_lifetime_monitor.cc",
+    "app_lifetime_monitor.h",
+    "app_lifetime_monitor_factory.cc",
+    "app_lifetime_monitor_factory.h",
+    "app_restore_service.cc",
+    "app_restore_service.h",
+    "app_restore_service_factory.cc",
+    "app_restore_service_factory.h",
+    "browser_context_keyed_service_factories.cc",
+    "browser_context_keyed_service_factories.h",
+    "launcher.cc",
+    "launcher.h",
+    "saved_files_service.cc",
+    "saved_files_service.h",
+    "saved_files_service_factory.cc",
+    "saved_files_service_factory.h",
+    "switches.cc",
+    "switches.h",
+  ]
+
+  configs += [ "//build/config/compiler:wexit_time_destructors" ]
+
+  deps = [
+    "//components/keyed_service/content",
+    "//content/public/browser",
+    "//content/public/common",
+    "//extensions/browser",
+    "//extensions/common",
+    "//extensions/common/api",
+  ]
+
+  if (is_chromeos) {
+    deps += [ "//components/user_manager" ]
+  }
+}
+
+static_library("test_support") {
+  testonly = true
+  sources = [
+    "test/app_window_waiter.cc",
+    "test/app_window_waiter.h",
+  ]
+
+  public_deps = [
+    "//content/public/browser",
+    "//extensions/browser",
+  ]
+}

src/apps/ui/views/BUILD.gn

@@ -0,0 +1,26 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+import("//extensions/buildflags/buildflags.gni")
+
+assert(enable_extensions)
+
+source_set("views") {
+  sources = [
+    "app_window_frame_view.cc",
+    "app_window_frame_view.h",
+  ]
+
+  deps = [
+    "//cc/paint",
+    "//chrome/app/theme:theme_resources",
+    "//extensions/browser",
+    "//extensions/common",
+    "//skia",
+    "//ui/gfx",
+    "//ui/strings",
+    "//ui/views",
+  ]
+}

src/ash/app_list/BUILD.gn

@@ -0,0 +1,257 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+import("//testing/test.gni")
+
+assert(is_chromeos)
+
+component("app_list") {
+  sources = [
+    "app_list_export.h",
+    "app_list_metrics.cc",
+    "app_list_metrics.h",
+    "app_list_util.cc",
+    "app_list_util.h",
+    "app_list_view_delegate.h",
+    "paged_view_structure.cc",
+    "paged_view_structure.h",
+    "pagination_controller.cc",
+    "pagination_controller.h",
+    "pagination_model.cc",
+    "pagination_model.h",
+    "pagination_model_observer.h",
+    "views/app_list_drag_and_drop_host.h",
+    "views/app_list_folder_view.cc",
+    "views/app_list_folder_view.h",
+    "views/app_list_item_view.cc",
+    "views/app_list_item_view.h",
+    "views/app_list_main_view.cc",
+    "views/app_list_main_view.h",
+    "views/app_list_menu_model_adapter.cc",
+    "views/app_list_menu_model_adapter.h",
+    "views/app_list_page.cc",
+    "views/app_list_page.h",
+    "views/app_list_view.cc",
+    "views/app_list_view.h",
+    "views/apps_container_view.cc",
+    "views/apps_container_view.h",
+    "views/apps_grid_view.cc",
+    "views/apps_grid_view.h",
+    "views/apps_grid_view_folder_delegate.h",
+    "views/assistant/assistant_main_stage.cc",
+    "views/assistant/assistant_main_stage.h",
+    "views/assistant/assistant_main_view.cc",
+    "views/assistant/assistant_main_view.h",
+    "views/assistant/assistant_page_view.cc",
+    "views/assistant/assistant_page_view.h",
+    "views/assistant/dialog_plate.cc",
+    "views/assistant/dialog_plate.h",
+    "views/contents_view.cc",
+    "views/contents_view.h",
+    "views/expand_arrow_view.cc",
+    "views/expand_arrow_view.h",
+    "views/folder_background_view.cc",
+    "views/folder_background_view.h",
+    "views/folder_header_view.cc",
+    "views/folder_header_view.h",
+    "views/folder_header_view_delegate.h",
+    "views/ghost_image_view.cc",
+    "views/ghost_image_view.h",
+    "views/horizontal_page.cc",
+    "views/horizontal_page.h",
+    "views/horizontal_page_container.cc",
+    "views/horizontal_page_container.h",
+    "views/page_switcher.cc",
+    "views/page_switcher.h",
+    "views/pulsing_block_view.cc",
+    "views/pulsing_block_view.h",
+    "views/remove_query_confirmation_dialog.cc",
+    "views/remove_query_confirmation_dialog.h",
+    "views/search_box_view.cc",
+    "views/search_box_view.h",
+    "views/search_result_actions_view.cc",
+    "views/search_result_actions_view.h",
+    "views/search_result_actions_view_delegate.h",
+    "views/search_result_answer_card_view.cc",
+    "views/search_result_answer_card_view.h",
+    "views/search_result_base_view.cc",
+    "views/search_result_base_view.h",
+    "views/search_result_container_view.cc",
+    "views/search_result_container_view.h",
+    "views/search_result_list_view.cc",
+    "views/search_result_list_view.h",
+    "views/search_result_page_view.cc",
+    "views/search_result_page_view.h",
+    "views/search_result_suggestion_chip_view.cc",
+    "views/search_result_suggestion_chip_view.h",
+    "views/search_result_tile_item_list_view.cc",
+    "views/search_result_tile_item_list_view.h",
+    "views/search_result_tile_item_view.cc",
+    "views/search_result_tile_item_view.h",
+    "views/search_result_view.cc",
+    "views/search_result_view.h",
+    "views/suggestion_chip_container_view.cc",
+    "views/suggestion_chip_container_view.h",
+    "views/suggestion_chip_view.cc",
+    "views/suggestion_chip_view.h",
+    "views/top_icon_animation_view.cc",
+    "views/top_icon_animation_view.h",
+  ]
+
+  defines = [ "APP_LIST_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/app_list/resources",
+    "//ash/app_menu",
+    "//ash/assistant/model",
+    "//ash/assistant/ui",
+    "//ash/assistant/ui:constants",
+    "//ash/assistant/util",
+    "//ash/public/cpp/app_list/vector_icons",
+    "//ash/public/cpp/vector_icons",
+    "//ash/resources/vector_icons",
+    "//ash/strings",
+    "//base",
+    "//base:i18n",
+    "//base/third_party/dynamic_annotations",
+    "//cc/paint",
+    "//chromeos:chromeos",
+    "//components/keyed_service/core",
+    "//components/sync",
+    "//mojo/public/cpp/bindings",
+    "//services/content/public/cpp",
+    "//services/ws/public/cpp",
+    "//services/ws/public/mojom",
+    "//services/ws/remote_view_host",
+    "//skia",
+    "//third_party/icu",
+    "//ui/accessibility",
+    "//ui/aura",
+    "//ui/base",
+    "//ui/base/ime",
+    "//ui/chromeos/search_box",
+    "//ui/compositor",
+    "//ui/display",
+    "//ui/events",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/keyboard/",
+    "//ui/resources",
+    "//ui/strings",
+    "//ui/views",
+    "//ui/views/mus/remote_view:remote_view_host",
+    "//ui/wm",
+  ]
+
+  # TODO(hejq): Remove this once app_list is migrated. http://crbug.com/733662
+  public_deps = [
+    "//ash/app_list/model:app_list_model",
+    "//ash/app_list/model:search_model",
+    "//ash/public/cpp",
+    "//services/content/public/mojom",
+  ]
+}
+
+static_library("test_support") {
+  testonly = true
+
+  sources = [
+    "test/app_list_test_model.cc",
+    "test/app_list_test_model.h",
+    "test/app_list_test_view_delegate.cc",
+    "test/app_list_test_view_delegate.h",
+    "test/test_search_result.cc",
+    "test/test_search_result.h",
+    "views/test/apps_grid_view_test_api.cc",
+    "views/test/apps_grid_view_test_api.h",
+  ]
+
+  deps = [
+    ":app_list",
+    "//base",
+    "//services/content/public/cpp/test:test_support",
+    "//ui/base:base",
+    "//ui/events",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+  ]
+}
+
+executable("app_list_demo") {
+  testonly = true
+
+  sources = [
+    "demo/app_list_demo_views.cc",
+  ]
+
+  deps = [
+    ":app_list",
+    ":test_support",
+    "//base",
+    "//build/win:default_exe_manifest",
+    "//content",
+    "//content/public/browser",
+    "//skia",
+    "//ui/base",
+    "//ui/events",
+    "//ui/resources",
+    "//ui/resources:ui_test_pak",
+    "//ui/views",
+    "//ui/views_content_client",
+    "//url",
+  ]
+}
+
+test("app_list_unittests") {
+  sources = [
+    "folder_image_unittest.cc",
+    "pagination_model_unittest.cc",
+    "test/run_all_unittests.cc",
+    "views/app_list_main_view_unittest.cc",
+    "views/app_list_menu_model_adapter_unittest.cc",
+    "views/app_list_view_unittest.cc",
+    "views/apps_grid_view_unittest.cc",
+    "views/folder_header_view_unittest.cc",
+    "views/search_box_view_unittest.cc",
+    "views/search_result_answer_card_view_unittest.cc",
+    "views/search_result_list_view_unittest.cc",
+    "views/search_result_page_view_unittest.cc",
+    "views/search_result_tile_item_list_view_unittest.cc",
+  ]
+
+  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
+
+  deps = [
+    ":app_list",
+    ":test_support",
+    "//ash/public/cpp/app_list/vector_icons",
+    "//base",
+    "//base/test:test_support",
+    "//chromeos/constants",
+    "//mojo/core/embedder",
+    "//mojo/public/cpp/bindings",
+    "//services/content/public/cpp",
+    "//services/content/public/cpp/test:test_support",
+    "//services/content/public/mojom",
+    "//skia",
+    "//testing/gtest",
+    "//ui/accessibility",
+    "//ui/base",
+    "//ui/chromeos/search_box",
+    "//ui/compositor",
+    "//ui/events:test_support",
+    "//ui/gfx:test_support",
+    "//ui/gl:test_support",
+    "//ui/keyboard",
+    "//ui/resources",
+    "//ui/views",
+    "//ui/views:test_support",
+  ]
+
+  data_deps = [
+    "//third_party/mesa_headers",
+    "//ui/resources:ui_test_pak_data",
+  ]
+}

src/ash/app_list/model/BUILD.gn

@@ -0,0 +1,57 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+component("app_list_model") {
+  sources = [
+    "app_list_folder_item.cc",
+    "app_list_folder_item.h",
+    "app_list_item.cc",
+    "app_list_item.h",
+    "app_list_item_list.cc",
+    "app_list_item_list.h",
+    "app_list_item_list_observer.h",
+    "app_list_item_observer.h",
+    "app_list_model.cc",
+    "app_list_model.h",
+    "app_list_model_observer.h",
+    "app_list_view_state.h",
+    "folder_image.cc",
+    "folder_image.h",
+  ]
+
+  defines = [ "APP_LIST_MODEL_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/public/cpp:cpp",
+    "//base:i18n",
+    "//cc/paint",
+    "//components/sync",
+    "//skia",
+    "//third_party/icu",
+    "//ui/base",
+    "//ui/gfx",
+  ]
+}
+
+component("search_model") {
+  sources = [
+    "search/search_box_model.cc",
+    "search/search_box_model.h",
+    "search/search_box_model_observer.h",
+    "search/search_model.cc",
+    "search/search_model.h",
+    "search/search_result.cc",
+    "search/search_result.h",
+    "search/search_result_observer.h",
+  ]
+
+  defines = [ "APP_LIST_MODEL_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/public/cpp:cpp",
+    "//base:i18n",
+    "//ui/base",
+    "//ui/gfx",
+  ]
+}

src/ash/app_list/presenter/BUILD.gn

@@ -0,0 +1,34 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+import("//testing/test.gni")
+
+assert(use_aura)
+
+component("presenter") {
+  sources = [
+    "app_list_presenter_delegate.cc",
+    "app_list_presenter_delegate.h",
+    "app_list_presenter_export.h",
+    "app_list_presenter_impl.cc",
+    "app_list_presenter_impl.h",
+  ]
+
+  defines = [ "APP_LIST_PRESENTER_IMPLEMENTATION" ]
+
+  public_deps = [
+    "//ash/app_list",
+    "//base",
+    "//mojo/public/cpp/bindings",
+    "//ui/aura",
+    "//ui/compositor",
+    "//ui/gfx/geometry",
+    "//ui/views",
+
+    # Temporary dependency to fix compile flake in http://crbug.com/611898.
+    # TODO(tapted): Remove once http://crbug.com/612382 is fixed.
+    "//ui/accessibility:ax_enums_mojo",
+  ]
+}

src/ash/app_list/resources/BUILD.gn

@@ -0,0 +1,22 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/grit_rule.gni")
+import("//tools/grit/repack.gni")
+
+group("resources") {
+  public_deps = [
+    ":resources_grd",
+  ]
+}
+
+grit("resources_grd") {
+  source = "app_list_resources.grd"
+  outputs = [
+    "grit/app_list_resources.h",
+    "app_list_resources_100_percent.pak",
+    "app_list_resources_200_percent.pak",
+    "app_list_resources_300_percent.pak",
+  ]
+}

src/ash/app_menu/BUILD.gn

@@ -0,0 +1,36 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+
+assert(is_chromeos)
+
+component("app_menu") {
+  sources = [
+    "app_menu_model_adapter.cc",
+    "app_menu_model_adapter.h",
+    "notification_item_view.cc",
+    "notification_item_view.h",
+    "notification_menu_controller.cc",
+    "notification_menu_controller.h",
+    "notification_menu_header_view.cc",
+    "notification_menu_header_view.h",
+    "notification_menu_view.cc",
+    "notification_menu_view.h",
+    "notification_overflow_view.cc",
+    "notification_overflow_view.h",
+  ]
+
+  defines = [ "APP_MENU_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/public/cpp",
+    "//base",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/message_center",
+    "//ui/strings:ui_strings_grit",
+    "//ui/views",
+  ]
+}

src/ash/assistant/model/BUILD.gn

@@ -0,0 +1,48 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(is_chromeos)
+
+component("model") {
+  output_name = "assistant_model"
+
+  defines = [ "IS_ASSISTANT_MODEL_IMPL" ]
+
+  sources = [
+    "assistant_alarm_timer_model.cc",
+    "assistant_alarm_timer_model.h",
+    "assistant_alarm_timer_model_observer.h",
+    "assistant_cache_model.cc",
+    "assistant_cache_model.h",
+    "assistant_cache_model_observer.h",
+    "assistant_interaction_model.cc",
+    "assistant_interaction_model.h",
+    "assistant_interaction_model_observer.h",
+    "assistant_notification_model.cc",
+    "assistant_notification_model.h",
+    "assistant_notification_model_observer.h",
+    "assistant_query.cc",
+    "assistant_query.h",
+    "assistant_query_history.cc",
+    "assistant_query_history.h",
+    "assistant_response.cc",
+    "assistant_response.h",
+    "assistant_screen_context_model.cc",
+    "assistant_screen_context_model.h",
+    "assistant_screen_context_model_observer.h",
+    "assistant_ui_element.cc",
+    "assistant_ui_element.h",
+    "assistant_ui_model.cc",
+    "assistant_ui_model.h",
+    "assistant_ui_model_observer.h",
+  ]
+
+  deps = [
+    "//ash/assistant/ui:constants",
+    "//ash/public/cpp",
+    "//chromeos/services/assistant/public/mojom",
+    "//services/content/public/cpp",
+    "//ui/gfx/geometry",
+  ]
+}

src/ash/assistant/ui/BUILD.gn

@@ -0,0 +1,124 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+import("//chromeos/assistant/assistant.gni")
+
+assert(is_chromeos)
+
+component("constants") {
+  output_name = "assistant_ui_constants"
+
+  defines = [ "IS_ASSISTANT_UI_CONSTANTS_IMPL" ]
+
+  sources = [
+    "assistant_ui_constants.cc",
+    "assistant_ui_constants.h",
+  ]
+
+  deps = [
+    "//base",
+    "//skia",
+    "//ui/aura",
+    "//ui/base",
+    "//ui/gfx",
+  ]
+}
+
+component("ui") {
+  output_name = "assistant_ui"
+
+  defines = [ "IS_ASSISTANT_UI_IMPL" ]
+
+  sources = [
+    "assistant_container_view.cc",
+    "assistant_container_view.h",
+    "assistant_container_view_animator.cc",
+    "assistant_container_view_animator.h",
+    "assistant_container_view_animator_legacy_impl.cc",
+    "assistant_container_view_animator_legacy_impl.h",
+    "assistant_container_view_focus_traversable.cc",
+    "assistant_container_view_focus_traversable.h",
+    "assistant_main_view.cc",
+    "assistant_main_view.h",
+    "assistant_mini_view.cc",
+    "assistant_mini_view.h",
+    "assistant_notification_overlay.cc",
+    "assistant_notification_overlay.h",
+    "assistant_notification_view.cc",
+    "assistant_notification_view.h",
+    "assistant_overlay.h",
+    "assistant_view_delegate.h",
+    "assistant_web_view.cc",
+    "assistant_web_view.h",
+    "base/assistant_button.cc",
+    "base/assistant_button.h",
+    "base/assistant_scroll_view.cc",
+    "base/assistant_scroll_view.h",
+    "caption_bar.cc",
+    "caption_bar.h",
+    "dialog_plate/action_view.cc",
+    "dialog_plate/action_view.h",
+    "dialog_plate/dialog_plate.cc",
+    "dialog_plate/dialog_plate.h",
+    "logo_view/base_logo_view.cc",
+    "logo_view/base_logo_view.h",
+    "main_stage/assistant_card_element_view.cc",
+    "main_stage/assistant_card_element_view.h",
+    "main_stage/assistant_footer_view.cc",
+    "main_stage/assistant_footer_view.h",
+    "main_stage/assistant_header_view.cc",
+    "main_stage/assistant_header_view.h",
+    "main_stage/assistant_main_stage.cc",
+    "main_stage/assistant_main_stage.h",
+    "main_stage/assistant_opt_in_view.cc",
+    "main_stage/assistant_opt_in_view.h",
+    "main_stage/assistant_progress_indicator.cc",
+    "main_stage/assistant_progress_indicator.h",
+    "main_stage/assistant_query_view.cc",
+    "main_stage/assistant_query_view.h",
+    "main_stage/assistant_text_element_view.cc",
+    "main_stage/assistant_text_element_view.h",
+    "main_stage/suggestion_chip_view.cc",
+    "main_stage/suggestion_chip_view.h",
+    "main_stage/suggestion_container_view.cc",
+    "main_stage/suggestion_container_view.h",
+    "main_stage/ui_element_container_view.cc",
+    "main_stage/ui_element_container_view.h",
+  ]
+
+  deps = [
+    "//ash/assistant/model",
+    "//ash/assistant/ui:constants",
+    "//ash/assistant/util",
+    "//ash/public/cpp",
+    "//ash/public/cpp/vector_icons",
+    "//ash/resources/vector_icons",
+    "//ash/strings",
+    "//base",
+    "//chromeos/assistant:buildflags",
+    "//chromeos/services/assistant/public:feature_flags",
+    "//chromeos/services/assistant/public/mojom",
+    "//services/content/public/cpp",
+    "//ui/aura",
+    "//ui/compositor",
+    "//ui/gfx",
+    "//ui/views",
+    "//ui/views/window/vector_icons",
+    "//ui/wm",
+  ]
+
+  if (enable_cros_libassistant) {
+    sources += [
+      "logo_view/logo_view.cc",
+      "logo_view/logo_view.h",
+      "logo_view/shape/mic_part_shape.cc",
+      "logo_view/shape/mic_part_shape.h",
+      "logo_view/shape/shape.cc",
+      "logo_view/shape/shape.h",
+    ]
+
+    deps += [ "//chromeos/assistant/internal/logo_view" ]
+  }
+}

src/ash/assistant/util/BUILD.gn

@@ -0,0 +1,35 @@
+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(is_chromeos)
+
+component("util") {
+  output_name = "assistant_util"
+
+  defines = [ "IS_ASSISTANT_UTIL_IMPL" ]
+
+  sources = [
+    "animation_util.cc",
+    "animation_util.h",
+    "assistant_util.cc",
+    "assistant_util.h",
+    "deep_link_util.cc",
+    "deep_link_util.h",
+    "histogram_util.cc",
+    "histogram_util.h",
+    "i18n_util.cc",
+    "i18n_util.h",
+  ]
+
+  deps = [
+    "//ash/assistant/model",
+    "//base",
+    "//base:i18n",
+    "//net",
+    "//ui/base",
+    "//ui/gfx",
+    "//ui/views",
+    "//url",
+  ]
+}

src/ash/components/cursor/BUILD.gn

@@ -0,0 +1,23 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("cursor") {
+  sources = [
+    "cursor_view.cc",
+    "cursor_view.h",
+  ]
+
+  deps = [
+    "//ash/components/fast_ink",
+    "//base",
+    "//cc",
+    "//components/viz/common",
+    "//skia",
+    "//ui/aura",
+    "//ui/events",
+    "//ui/events/ozone:events_ozone",
+    "//ui/gfx",
+    "//ui/views:views",
+  ]
+}

src/ash/components/fast_ink/BUILD.gn

@@ -0,0 +1,42 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("fast_ink") {
+  sources = [
+    "fast_ink_pointer_controller.cc",
+    "fast_ink_pointer_controller.h",
+    "fast_ink_points.cc",
+    "fast_ink_points.h",
+    "fast_ink_view.cc",
+    "fast_ink_view.h",
+  ]
+
+  deps = [
+    "//base",
+    "//cc",
+    "//components/viz/service",
+    "//gpu",
+    "//gpu/command_buffer/client:gles2_interface",
+    "//services/ws/public/mojom",
+    "//skia",
+    "//ui/aura",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/gl",
+    "//ui/views:views",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "fast_ink_points_unittest.cc",
+  ]
+
+  deps = [
+    ":fast_ink",
+    "//testing/gtest",
+    "//ui/events:test_support",
+  ]
+}

src/ash/components/resources/BUILD.gn

@@ -0,0 +1,16 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/grit_rule.gni")
+
+grit("resources") {
+  source = "ash_components_resources.grd"
+  outputs = [
+    "grit/ash_components_resources.h",
+    "grit/ash_components_resources_map.cc",
+    "grit/ash_components_resources_map.h",
+    "ash_components_resources_100_percent.pak",
+    "ash_components_resources_200_percent.pak",
+  ]
+}

src/ash/components/shortcut_viewer/BUILD.gn

@@ -0,0 +1,67 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# KSV: Keyboard Shortcut Viewer
+source_set("lib") {
+  sources = [
+    "keyboard_shortcut_item.cc",
+    "keyboard_shortcut_item.h",
+    "keyboard_shortcut_viewer_metadata.cc",
+    "keyboard_shortcut_viewer_metadata.h",
+    "ksv_export.h",
+    "last_window_closed_observer.cc",
+    "last_window_closed_observer.h",
+    "shortcut_viewer_application.cc",
+    "shortcut_viewer_application.h",
+    "views/bubble_view.cc",
+    "views/bubble_view.h",
+    "views/keyboard_shortcut_item_list_view.cc",
+    "views/keyboard_shortcut_item_list_view.h",
+    "views/keyboard_shortcut_item_view.cc",
+    "views/keyboard_shortcut_item_view.h",
+    "views/keyboard_shortcut_view.cc",
+    "views/keyboard_shortcut_view.h",
+    "views/ksv_search_box_view.cc",
+    "views/ksv_search_box_view.h",
+  ]
+
+  defines = [ "KSV_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/components/shortcut_viewer/public/mojom",
+    "//ash/components/shortcut_viewer/vector_icons",
+    "//ash/components/strings",
+    "//ash/public/cpp",
+    "//ash/public/cpp/resources:ash_public_unscaled_resources",
+    "//cc/paint",
+    "//services/service_manager/public/cpp/",
+    "//ui/accessibility",
+    "//ui/aura",
+    "//ui/chromeos/events",
+    "//ui/chromeos/search_box",
+    "//ui/events:events_base",
+    "//ui/events/devices",
+    "//ui/events/ozone:events_ozone_layout",
+    "//ui/views",
+    "//ui/views/mus",
+    "//ui/views/mus:resources",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "views/keyboard_shortcut_view_unittest.cc",
+  ]
+  deps = [
+    ":lib",
+    "//ash:test_support",
+    "//base/test:test_support",
+    "//services/ws/public/cpp/input_devices:test_support",
+    "//testing/gtest",
+    "//ui/compositor:test_support",
+    "//ui/events:test_support",
+    "//ui/views",
+  ]
+}

src/ash/components/shortcut_viewer/public/cpp/BUILD.gn

@@ -0,0 +1,18 @@
+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("manifest") {
+  sources = [
+    "manifest.cc",
+    "manifest.h",
+  ]
+
+  deps = [
+    "//ash/components/shortcut_viewer/public/mojom",
+    "//base",
+    "//services/service_manager/public/cpp",
+    "//services/ws/public/mojom:constants",
+    "//ui/accessibility/mojom",
+  ]
+}

src/ash/components/shortcut_viewer/public/mojom/BUILD.gn

@@ -0,0 +1,15 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+mojom("mojom") {
+  sources = [
+    "shortcut_viewer.mojom",
+  ]
+
+  public_deps = [
+    "//mojo/public/mojom/base",
+  ]
+}

src/ash/components/shortcut_viewer/public/mojom/shortcut_viewer.mojom

@@ -0,0 +1,21 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module shortcut_viewer.mojom;
+
+import "mojo/public/mojom/base/time.mojom";
+
+const string kServiceName = "shortcut_viewer_app";
+
+// Grants a client the ability to toggle the Keyboard Shortcut Viewer window
+// through the ShortcutViewer interface defined below.
+const string kToggleUiCapability = "toggle_ui";
+
+// Used to toggle the Keyboard Shortcut Viewer window.
+interface ShortcutViewer {
+  // |user_gesture_time| is the time of the user gesture that caused the window
+  // to show. Used for metrics.
+  Toggle(mojo_base.mojom.TimeTicks user_gesture_time);
+};
+

src/ash/components/shortcut_viewer/vector_icons/BUILD.gn

@@ -0,0 +1,40 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//components/vector_icons/vector_icons.gni")
+
+aggregate_vector_icons("ksv_vector_icons") {
+  icon_directory = "."
+
+  icons = [
+    "ksv_search_back.icon",
+    "ksv_search_bar.icon",
+    "ksv_search_close.icon",
+    "ksv_search_no_result.icon",
+    "ksv_separator_plus.icon",
+    "ksv_arrow_down.icon",
+    "ksv_arrow_left.icon",
+    "ksv_arrow_right.icon",
+    "ksv_arrow_up.icon",
+    "ksv_brightness_down.icon",
+    "ksv_brightness_up.icon",
+    "ksv_browser_back.icon",
+    "ksv_browser_forward.icon",
+    "ksv_fullscreen.icon",
+    "ksv_mute.icon",
+    "ksv_overview.icon",
+    "ksv_reload.icon",
+    "ksv_volume_down.icon",
+    "ksv_volume_up.icon",
+  ]
+}
+
+source_set("vector_icons") {
+  sources = get_target_outputs(":ksv_vector_icons")
+
+  deps = [
+    ":ksv_vector_icons",
+    "//skia",
+  ]
+}

src/ash/components/strings/BUILD.gn

@@ -0,0 +1,66 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/grit_rule.gni")
+
+grit("strings") {
+  source = "../ash_components_strings.grd"
+  outputs = [
+    "grit/ash_components_strings.h",
+    "ash_components_strings_am.pak",
+    "ash_components_strings_ar.pak",
+    "ash_components_strings_bg.pak",
+    "ash_components_strings_bn.pak",
+    "ash_components_strings_ca.pak",
+    "ash_components_strings_cs.pak",
+    "ash_components_strings_da.pak",
+    "ash_components_strings_de.pak",
+    "ash_components_strings_el.pak",
+    "ash_components_strings_en-GB.pak",
+    "ash_components_strings_en-US.pak",
+    "ash_components_strings_es-419.pak",
+    "ash_components_strings_es.pak",
+    "ash_components_strings_et.pak",
+    "ash_components_strings_fake-bidi.pak",
+    "ash_components_strings_fa.pak",
+    "ash_components_strings_fil.pak",
+    "ash_components_strings_fi.pak",
+    "ash_components_strings_fr.pak",
+    "ash_components_strings_gu.pak",
+    "ash_components_strings_he.pak",
+    "ash_components_strings_hi.pak",
+    "ash_components_strings_hr.pak",
+    "ash_components_strings_hu.pak",
+    "ash_components_strings_id.pak",
+    "ash_components_strings_it.pak",
+    "ash_components_strings_ja.pak",
+    "ash_components_strings_kn.pak",
+    "ash_components_strings_ko.pak",
+    "ash_components_strings_lt.pak",
+    "ash_components_strings_lv.pak",
+    "ash_components_strings_ml.pak",
+    "ash_components_strings_mr.pak",
+    "ash_components_strings_ms.pak",
+    "ash_components_strings_nb.pak",
+    "ash_components_strings_nl.pak",
+    "ash_components_strings_pl.pak",
+    "ash_components_strings_pt-BR.pak",
+    "ash_components_strings_pt-PT.pak",
+    "ash_components_strings_ro.pak",
+    "ash_components_strings_ru.pak",
+    "ash_components_strings_sk.pak",
+    "ash_components_strings_sl.pak",
+    "ash_components_strings_sr.pak",
+    "ash_components_strings_sv.pak",
+    "ash_components_strings_sw.pak",
+    "ash_components_strings_ta.pak",
+    "ash_components_strings_te.pak",
+    "ash_components_strings_th.pak",
+    "ash_components_strings_tr.pak",
+    "ash_components_strings_uk.pak",
+    "ash_components_strings_vi.pak",
+    "ash_components_strings_zh-CN.pak",
+    "ash_components_strings_zh-TW.pak",
+  ]
+}

src/ash/components/tap_visualizer/BUILD.gn

@@ -0,0 +1,45 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("lib") {
+  sources = [
+    "tap_renderer.cc",
+    "tap_renderer.h",
+    "tap_visualizer_app.cc",
+    "tap_visualizer_app.h",
+  ]
+
+  deps = [
+    "//ash/components/tap_visualizer/public/mojom",
+    "//ash/public/cpp",
+    "//base",
+    "//cc/paint",
+    "//services/service_manager/public/cpp",
+    "//services/ws/public/cpp",
+    "//services/ws/public/mojom",
+    "//skia",
+    "//ui/compositor",
+    "//ui/events",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/views",
+    "//ui/views/mus:for_mojo_application",
+    "//ui/views/mus:resources",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "tap_visualizer_app_unittest.cc",
+  ]
+  deps = [
+    ":lib",
+    "//testing/gtest",
+    "//ui/aura:test_support",
+    "//ui/views",
+    "//ui/views:test_support",
+    "//ui/views/mus",
+  ]
+}

src/ash/components/tap_visualizer/public/cpp/BUILD.gn

@@ -0,0 +1,17 @@
+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("manifest") {
+  sources = [
+    "manifest.cc",
+    "manifest.h",
+  ]
+
+  deps = [
+    "//ash/components/tap_visualizer/public/mojom",
+    "//base",
+    "//services/service_manager/public/cpp",
+    "//services/ws/public/mojom:constants",
+  ]
+}

src/ash/components/tap_visualizer/public/mojom/BUILD.gn

@@ -0,0 +1,11 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+mojom("mojom") {
+  sources = [
+    "tap_visualizer.mojom",
+  ]
+}

src/ash/components/tap_visualizer/public/mojom/tap_visualizer.mojom

@@ -0,0 +1,16 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module tap_visualizer.mojom;
+
+const string kServiceName = "tap_visualizer_app";
+
+// Grants a client the ability to show this service's UI through the
+// TapVisualizer interface defined below.
+const string kShowUiCapability = "show_ui";
+
+interface TapVisualizer {
+  // Show the UI.
+  Show();
+};

src/ash/keyboard/arc/BUILD.gn

@@ -0,0 +1,22 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/ui.gni")
+
+static_library("arc") {
+  sources = [
+    "arc_input_method_surface_manager.cc",
+    "arc_input_method_surface_manager.h",
+    "arc_virtual_keyboard_container_layout_manager.cc",
+    "arc_virtual_keyboard_container_layout_manager.h",
+  ]
+
+  deps = [
+    "//ash/public/cpp",
+    "//base",
+    "//components/exo",
+    "//ui/aura",
+    "//ui/gfx/geometry",
+  ]
+}

src/ash/login/resources/BUILD.gn

@@ -0,0 +1,17 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/grit_rule.gni")
+
+grit("resources") {
+  source = "login_resources.grd"
+  outputs = [
+    "grit/login_resources.h",
+    "grit/login_resources_map.cc",
+    "grit/login_resources_map.h",
+    "login_resources_100_percent.pak",
+    "login_resources_200_percent.pak",
+    "login_resources_300_percent.pak",
+  ]
+}

src/ash/public/cpp/BUILD.gn

@@ -0,0 +1,262 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+# C++ headers and sources that can be used outside ash.
+component("cpp") {
+  sources = [
+    "accelerators.cc",
+    "accelerators.h",
+    "app_list/app_list_config.cc",
+    "app_list/app_list_config.h",
+    "app_list/app_list_features.cc",
+    "app_list/app_list_features.h",
+    "app_list/app_list_metrics.cc",
+    "app_list/app_list_metrics.h",
+    "app_list/app_list_switches.cc",
+    "app_list/app_list_switches.h",
+    "app_list/app_list_types.cc",
+    "app_list/app_list_types.h",
+    "app_list/internal_app_id_constants.h",
+    "app_list/term_break_iterator.cc",
+    "app_list/term_break_iterator.h",
+    "app_list/tokenized_string.cc",
+    "app_list/tokenized_string.h",
+    "app_list/tokenized_string_char_iterator.cc",
+    "app_list/tokenized_string_char_iterator.h",
+    "app_list/tokenized_string_match.cc",
+    "app_list/tokenized_string_match.h",
+    "app_menu_constants.h",
+    "app_types.h",
+    "ash_client.cc",
+    "ash_client.h",
+    "ash_constants.h",
+    "ash_features.cc",
+    "ash_features.h",
+    "ash_pref_names.cc",
+    "ash_pref_names.h",
+    "ash_public_export.h",
+    "ash_switches.cc",
+    "ash_switches.h",
+    "ash_typography.cc",
+    "ash_typography.h",
+    "ash_view_ids.h",
+    "assistant/assistant_state_base.cc",
+    "assistant/assistant_state_base.h",
+    "assistant/assistant_state_proxy.cc",
+    "assistant/assistant_state_proxy.h",
+    "assistant/default_voice_interaction_observer.h",
+    "caption_buttons/caption_button_model.h",
+    "caption_buttons/frame_back_button.cc",
+    "caption_buttons/frame_back_button.h",
+    "caption_buttons/frame_caption_button_container_view.cc",
+    "caption_buttons/frame_caption_button_container_view.h",
+    "caption_buttons/frame_caption_delegate.h",
+    "caption_buttons/frame_size_button.cc",
+    "caption_buttons/frame_size_button.h",
+    "caption_buttons/frame_size_button_delegate.h",
+    "default_frame_header.cc",
+    "default_frame_header.h",
+    "default_scale_factor_retriever.cc",
+    "default_scale_factor_retriever.h",
+    "fps_counter.cc",
+    "fps_counter.h",
+    "frame_header.cc",
+    "frame_header.h",
+    "frame_utils.cc",
+    "frame_utils.h",
+    "gesture_action_type.h",
+    "immersive/immersive_context.h",
+    "immersive/immersive_focus_watcher.cc",
+    "immersive/immersive_focus_watcher.h",
+    "immersive/immersive_fullscreen_controller.cc",
+    "immersive/immersive_fullscreen_controller.h",
+    "immersive/immersive_fullscreen_controller_delegate.h",
+    "immersive/immersive_revealed_lock.cc",
+    "immersive/immersive_revealed_lock.h",
+    "lock_screen_widget_factory.cc",
+    "lock_screen_widget_factory.h",
+    "login_constants.h",
+    "menu_utils.cc",
+    "menu_utils.h",
+    "mus_property_mirror_ash.cc",
+    "mus_property_mirror_ash.h",
+    "network_icon_image_source.cc",
+    "network_icon_image_source.h",
+    "notification_utils.cc",
+    "notification_utils.h",
+    "power_utils.cc",
+    "power_utils.h",
+    "presentation_time_recorder.cc",
+    "presentation_time_recorder.h",
+    "remote_shelf_item_delegate.cc",
+    "remote_shelf_item_delegate.h",
+    "rounded_corner_decorator.cc",
+    "rounded_corner_decorator.h",
+    "scale_utility.cc",
+    "scale_utility.h",
+    "session_types.h",
+    "shelf_item.cc",
+    "shelf_item.h",
+    "shelf_item_delegate.cc",
+    "shelf_item_delegate.h",
+    "shelf_model.cc",
+    "shelf_model.h",
+    "shelf_model_observer.h",
+    "shelf_prefs.cc",
+    "shelf_prefs.h",
+    "shelf_types.cc",
+    "shelf_types.h",
+    "shell_window_ids.cc",
+    "shell_window_ids.h",
+    "stylus_utils.cc",
+    "stylus_utils.h",
+    "system_tray_focus_observer.h",
+    "tablet_mode.cc",
+    "tablet_mode.h",
+    "touch_uma.cc",
+    "touch_uma.h",
+    "wallpaper_types.h",
+    "window_animation_types.h",
+    "window_pin_type.cc",
+    "window_pin_type.h",
+    "window_properties.cc",
+    "window_properties.h",
+    "window_state_type.cc",
+    "window_state_type.h",
+  ]
+
+  defines = [ "ASH_PUBLIC_IMPLEMENTATION" ]
+
+  deps = [
+    "//ash/public/cpp/vector_icons",
+    "//chromeos/constants",
+    "//chromeos/dbus:power_manager_proto",
+    "//components/prefs",
+    "//mojo/public/cpp/bindings",
+    "//services/service_manager/public/cpp",
+    "//services/ws/public/cpp",
+    "//services/ws/public/mojom",
+    "//skia/public/interfaces",
+    "//ui/aura",
+    "//ui/chromeos/strings",
+    "//ui/compositor_extra",
+    "//ui/display",
+    "//ui/events/devices",
+    "//ui/message_center/public/cpp",
+    "//ui/views",
+    "//ui/views/mus",
+    "//ui/views/window/vector_icons",
+    "//ui/wm",
+    "//ui/wm/public",
+  ]
+
+  public_deps = [
+    "//ash/public/interfaces:interfaces_internal",
+    "//base",
+    "//ui/gfx",
+  ]
+
+  allow_circular_includes_from =
+      [ "//ash/public/interfaces:interfaces_internal" ]
+
+  output_name = "ash_public_cpp"
+}
+
+source_set("manifest") {
+  sources = [
+    "manifest.cc",
+    "manifest.h",
+  ]
+
+  deps = [
+    "//ash/public/interfaces:interfaces_internal",
+    "//base",
+    "//chromeos/services/multidevice_setup/public/mojom",
+    "//services/content/public/mojom",
+    "//services/data_decoder/public/mojom",
+    "//services/device/public/mojom",
+    "//services/preferences/public/mojom",
+    "//services/service_manager/public/cpp",
+    "//services/service_manager/public/mojom",
+    "//services/viz/public/interfaces",
+    "//services/ws/public/cpp:manifest",
+    "//services/ws/public/mojom",
+  ]
+}
+
+source_set("manifest_for_tests") {
+  testonly = true
+
+  sources = [
+    "test_manifest.cc",
+    "test_manifest.h",
+  ]
+
+  deps = [
+    ":manifest",
+    "//ash/public/interfaces:test_interfaces",
+    "//base",
+    "//services/service_manager/public/cpp",
+    "//services/service_manager/public/mojom",
+  ]
+}
+
+# Using a test service because the traits need to pass handles around. Revisit
+# this after Deserialize(Serialize()) API works with handles.
+mojom("test_interfaces") {
+  visibility = [ ":unit_tests" ]
+  disable_variants = true
+
+  sources = [
+    "shelf_struct_traits_test_service.mojom",
+  ]
+
+  public_deps = [
+    "//ash/public/interfaces:interfaces_internal",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "default_scale_factor_retriever_unittest.cc",
+    "menu_utils_unittest.cc",
+    "power_utils_unittest.cc",
+    "rounded_corner_decorator_unittest.cc",
+    "shelf_model_unittest.cc",
+    "shelf_struct_mojom_traits_unittest.cc",
+  ]
+
+  deps = [
+    ":cpp",
+    ":test_interfaces",
+    "//base",
+    "//testing/gtest",
+    "//ui/aura:test_support",
+    "//ui/gfx:test_support",
+  ]
+}
+
+source_set("test_support") {
+  testonly = true
+  sources = [
+    "immersive/immersive_fullscreen_controller_test_api.cc",
+    "immersive/immersive_fullscreen_controller_test_api.h",
+    "test/test_keyboard_controller_observer.cc",
+    "test/test_keyboard_controller_observer.h",
+  ]
+
+  deps = [
+    ":cpp",
+    "//base",
+    "//services/service_manager/public/cpp",
+    "//ui/aura",
+    "//ui/aura:test_support",
+    "//ui/gfx",
+    "//ui/keyboard:mojom",
+    "//ui/views",
+  ]
+}

src/ash/public/cpp/app_list/vector_icons/BUILD.gn

@@ -0,0 +1,40 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//components/vector_icons/vector_icons.gni")
+
+aggregate_vector_icons("app_list_vector_icons") {
+  icon_directory = "."
+
+  icons = [
+    "arrow_up.icon",
+    "badge_instant.icon",
+    "badge_play.icon",
+    "badge_rating.icon",
+    "bookmark.icon",
+    "domain.icon",
+    "equal.icon",
+    "google_black.icon",
+    "google_color.icon",
+    "history.icon",
+    "mic_black.icon",
+    "search.icon",
+    "search_engine_not_google.icon",
+    "search_result_append.icon",
+    "search_result_remove.icon",
+    "vertical_bar_end.icon",
+    "vertical_bar_middle.icon",
+    "vertical_bar_single.icon",
+    "vertical_bar_start.icon",
+  ]
+}
+
+source_set("vector_icons") {
+  sources = get_target_outputs(":app_list_vector_icons")
+
+  deps = [
+    ":app_list_vector_icons",
+    "//skia",
+  ]
+}

src/ash/public/cpp/resources/BUILD.gn

@@ -0,0 +1,13 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//tools/grit/grit_rule.gni")
+
+grit("ash_public_unscaled_resources") {
+  source = "ash_public_unscaled_resources.grd"
+  outputs = [
+    "grit/ash_public_unscaled_resources.h",
+    "ash_public_unscaled_resources.pak",
+  ]
+}

src/ash/public/cpp/shelf_struct_traits_test_service.mojom

@@ -0,0 +1,13 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/shelf.mojom";
+
+// A test echo interface for traits.
+interface ShelfStructTraitsTestService {
+  [Sync]
+  EchoShelfItem(ShelfItem in) => (ShelfItem out);
+};

src/ash/public/cpp/vector_icons/BUILD.gn

@@ -0,0 +1,57 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//components/vector_icons/vector_icons.gni")
+
+# The icons in this target, unlike those in //ash/resources/vector_icons, are ok to use from outside of ash/.
+aggregate_vector_icons("ash_public_vector_icons") {
+  icon_directory = "."
+
+  icons = [
+    "assistant.icon",
+    "assistant_mic.icon",
+    "auto_launch_managed_guest_session.icon",
+    "notification_assistant.icon",
+    "notification_captive_portal.icon",
+    "notification_cellular_alert.icon",
+    "notification_download.icon",
+    "notification_end_of_support.icon",
+    "window_control_dezoom.icon",
+    "window_control_back.icon",
+    "window_control_menu.icon",
+    "window_control_zoom.icon",
+    "notification_family_link.icon",
+    "notification_google.icon",
+    "notification_image.icon",
+    "notification_installed.icon",
+    "notification_linux.icon",
+    "notification_messages.icon",
+    "notification_mobile_data.icon",
+    "notification_mobile_data_off.icon",
+    "notification_multi_device_setup.icon",
+    "notification_play_prism.icon",
+    "notification_printing.icon",
+    "notification_printing_done.icon",
+    "notification_printing_warning.icon",
+    "notification_settings.icon",
+    "notification_storage_full.icon",
+    "notification_supervised_user.icon",
+    "notification_vpn.icon",
+    "notification_warning.icon",
+    "notification_wifi_off.icon",
+    "window_control_left_snapped.icon",
+    "window_control_right_snapped.icon",
+  ]
+}
+
+source_set("vector_icons") {
+  sources = get_target_outputs(":ash_public_vector_icons")
+
+  deps = [
+    ":ash_public_vector_icons",
+    "//base",
+    "//skia",
+    "//ui/gfx",
+  ]
+}

src/ash/public/interfaces/BUILD.gn

@@ -0,0 +1,117 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+# Depend upon //ash/public/cpp, which has a public_dep on this. The two targets
+# must be bundled together as the typemaps depend upon //ash/public/cpp,
+# and //ash/public/cpp needs to depend on this for generated code (such as
+# enums and constants).
+mojom("interfaces_internal") {
+  visibility = [ "//ash/public/cpp:*" ]
+  disable_variants = true
+
+  sources = [
+    "accelerator_controller.mojom",
+    "accessibility_controller.mojom",
+    "accessibility_controller_enums.mojom",
+    "accessibility_focus_ring_controller.mojom",
+    "app_list.mojom",
+    "arc_custom_tab.mojom",
+    "ash_display_controller.mojom",
+    "ash_message_center_controller.mojom",
+    "ash_window_manager.mojom",
+    "assistant_controller.mojom",
+    "assistant_image_downloader.mojom",
+    "assistant_setup.mojom",
+    "assistant_volume_control.mojom",
+    "cast_config.mojom",
+    "constants.mojom",
+    "cros_display_config.mojom",
+    "display_output_protection.mojom",
+    "docked_magnifier_controller.mojom",
+    "event_properties.mojom",
+    "event_rewriter_controller.mojom",
+    "first_run_helper.mojom",
+    "highlighter_controller.mojom",
+    "ime_controller.mojom",
+    "ime_info.mojom",
+    "keyboard_controller.mojom",
+    "kiosk_app_info.mojom",
+    "kiosk_next_shell.mojom",
+    "locale.mojom",
+    "login_screen.mojom",
+    "login_user_info.mojom",
+    "media.mojom",
+    "menu.mojom",
+    "multi_user_window_manager.mojom",
+    "new_window.mojom",
+    "night_light_controller.mojom",
+    "note_taking_controller.mojom",
+    "pref_connector.mojom",
+    "process_creation_time_recorder.mojom",
+    "session_controller.mojom",
+    "shelf.mojom",
+    "shutdown.mojom",
+    "split_view.mojom",
+    "system_tray.mojom",
+    "tablet_mode.mojom",
+    "tray_action.mojom",
+    "update.mojom",
+    "user_info.mojom",
+    "voice_interaction_controller.mojom",
+    "volume.mojom",
+    "vpn_list.mojom",
+    "wallpaper.mojom",
+    "window_pin_type.mojom",
+    "window_properties.mojom",
+    "window_state_type.mojom",
+  ]
+
+  public_deps = [
+    "//chromeos/components/proximity_auth/public/interfaces",
+    "//chromeos/services/assistant/public/mojom",
+    "//components/account_id/interfaces",
+    "//components/arc/common:notifications",
+    "//components/sync/mojo:interfaces",
+    "//mojo/public/mojom/base",
+    "//services/content/public/mojom",
+    "//services/preferences/public/mojom",
+    "//skia/public/interfaces",
+    "//ui/accessibility:ax_enums_mojo",
+    "//ui/base/ime/chromeos/public/interfaces",
+    "//ui/base/mojo",
+    "//ui/display/mojo:interfaces",
+    "//ui/events/mojo:interfaces",
+    "//ui/gfx/geometry/mojo",
+    "//ui/gfx/image/mojo:interfaces",
+    "//ui/gfx/range/mojo",
+    "//ui/keyboard:mojom",
+    "//ui/message_center/public/mojo:mojo",
+    "//url/mojom:url_mojom_gurl",
+  ]
+
+  component_output_prefix = "ash_public_interfaces_internal"
+  export_class_attribute = "ASH_PUBLIC_EXPORT"
+  export_define = "ASH_PUBLIC_IMPLEMENTATION=1"
+  export_header = "ash/public/cpp/ash_public_export.h"
+}
+
+mojom("test_interfaces") {
+  testonly = true
+  disable_variants = true
+  sources = [
+    "login_screen_test_api.test-mojom",
+    "shelf_test_api.test-mojom",
+    "shell_test_api.test-mojom",
+    "status_area_widget_test_api.test-mojom",
+    "system_tray_test_api.test-mojom",
+    "time_to_first_present_recorder_test_api.test-mojom",
+  ]
+  deps = [
+    "//components/account_id/interfaces",
+    "//mojo/public/mojom/base",
+    "//ui/gfx/geometry/mojo",
+  ]
+}

src/ash/public/interfaces/accelerator_controller.mojom

@@ -0,0 +1,16 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/volume.mojom";
+
+// Implemented by ash to delegate parts of keyboard accelerator handling back
+// to chrome.
+interface AcceleratorController {
+  // Sets the volume controller interface. This lives in chrome because chrome
+  // owns the D-Bus CrasAudioHandler implementation. Also the accessibility
+  // manager in chrome needs to know about volume changes.
+  SetVolumeController(VolumeController controller);
+};

src/ash/public/interfaces/accessibility_controller.mojom

@@ -0,0 +1,140 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/accessibility_controller_enums.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "mojo/public/mojom/base/time.mojom";
+import "ui/accessibility/ax_enums.mojom";
+import "ui/events/mojo/event.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Allows a client to implement Select-to-Speak.
+// TODO(katie): Consider combining DispatchMouseEvent and DispatchKeyEvent
+// into a single DispatchEvent function.
+interface SelectToSpeakEventHandlerDelegate {
+  // Sends a KeyEvent to the Select-to-Speak extension in Chrome. The event
+  // is cast to a key event with a type CHECK.
+  DispatchKeyEvent(ui.mojom.Event event);
+
+  // Sends a MouseEvent to the Select-to-Speak extension in Chrome. The event
+  // is cast to a mouse event with a type CHECK.
+  DispatchMouseEvent(ui.mojom.Event event);
+};
+
+// Allows a client to implement Switch Access.
+interface SwitchAccessEventHandlerDelegate {
+  // Sends a KeyEvent to the Switch Access extension in Chrome. The event
+  // is cast to a key event with a type CHECK.
+  DispatchKeyEvent(ui.mojom.Event event);
+};
+
+// Interface for ash client (e.g. Chrome) to control and query accessibility
+// features.
+interface AccessibilityController {
+  // Sets the client interface.
+  SetClient(AccessibilityControllerClient client);
+
+  // Starts or stops darkening the screen (e.g. to allow chrome a11y extensions
+  // to darken the screen).
+  SetDarkenScreen(bool darken);
+
+  // Called when braille display state is changed.
+  BrailleDisplayStateChanged(bool connected);
+
+  // Sets the focus highlight rect using |bounds_in_screen|. Called when focus
+  // changed in page and a11y focus highlight feature is enabled.
+  SetFocusHighlightRect(gfx.mojom.Rect bounds_in_screen);
+
+  // Sets the text input caret bounds used to draw the caret highlight effect.
+  // For effciency, only sent when the caret highlight feature is enabled.
+  // Setting off-screen or empty bounds suppresses the highlight.
+  SetCaretBounds(gfx.mojom.Rect bounds_in_screen);
+
+  // Sets whether the accessibility panel should always be visible, regardless
+  // of whether the window is fullscreen.
+  SetAccessibilityPanelAlwaysVisible(bool always_visible);
+
+  // Sets the bounds for the accessibility panel. Overrides current
+  // configuration (i.e. fullscreen, full-width).
+  SetAccessibilityPanelBounds(gfx.mojom.Rect bounds,
+                              AccessibilityPanelState state);
+
+  // Sets the current Select-to-Speak state. This should be used by the Select-
+  // to-Speak extension to inform ash of its updated state.
+  SetSelectToSpeakState(SelectToSpeakState state);
+
+  // Set the delegate used by the Select-to-Speak event handler.
+  SetSelectToSpeakEventHandlerDelegate(
+      SelectToSpeakEventHandlerDelegate delegate);
+
+  // Sets the key codes that Switch Access should capture.
+  SetSwitchAccessKeysToCapture(array<int32> keys_to_capture);
+
+  // Set the delegate used by the Switch Access event handler.
+  SetSwitchAccessEventHandlerDelegate(
+      SwitchAccessEventHandlerDelegate delegate);
+
+  // Starts or stops dictation. Records metrics for toggling via SwitchAccess.
+  ToggleDictationFromSource(DictationToggleSource source);
+
+  // Tells the Switch Access Event Handler whether to forward all key events to
+  // the Switch Access extension.
+  ForwardKeyEventsToSwitchAccess(bool should_forward);
+
+  // Retrieves a string description of the current battery status.
+  GetBatteryDescription()
+    => (mojo_base.mojom.String16 battery_description);
+};
+
+// Interface for ash to request accessibility service from its client (e.g.
+// Chrome).
+interface AccessibilityControllerClient {
+  // Triggers an accessibility alert to give the user feedback.
+  TriggerAccessibilityAlert(AccessibilityAlert alert);
+
+  // Plays an earcon. Earcons are brief and distinctive sounds that indicate
+  // that their mapped event has occurred. The |sound_key| enums can be found in
+  // chromeos/audio/chromeos_sounds.h. This method exists because the browser
+  // owns all media playback.
+  PlayEarcon(int32 sound_key);
+
+  // Initiates play of shutdown sound and returns sound duration. This method
+  // exists because the browser owns all media playback.
+  PlayShutdownSound() => (mojo_base.mojom.TimeDelta sound_duration);
+
+  // Forwards an accessibility gesture from the touch exploration controller to
+  // ChromeVox.
+  HandleAccessibilityGesture(ax.mojom.Gesture gesture);
+
+  // Starts or stops dictation (type what you speak).
+  // Returns the new dictation state after the toggle.
+  ToggleDictation() => (bool dictation_on);
+
+  // Cancels all current and queued speech immediately.
+  SilenceSpokenFeedback();
+
+  // Called when we first detect two fingers are held down, which can be used to
+  // toggle spoken feedback on some touch-only devices.
+  OnTwoFingerTouchStart();
+
+  // Called when the user is no longer holding down two fingers (including
+  // releasing one, holding down three, or moving them).
+  OnTwoFingerTouchStop();
+
+  // Whether or not to enable toggling spoken feedback via holding down two
+  // fingers on the screen.
+  ShouldToggleSpokenFeedbackViaTouch() => (bool should_toggle);
+
+  // Plays tick sound indicating spoken feedback will be toggled after
+  // countdown.
+  PlaySpokenFeedbackToggleCountdown(int32 tick_count);
+
+  // Requests the Select-to-Speak extension to change its state. This lets users
+  // do the same things in tablet mode as with a keyboard. Specifically, if
+  // Select-to-Speak is not speaking, move to capturing state; if
+  // Select-to-Speak is speaking, cancel speaking and move to inactive state.
+  RequestSelectToSpeakStateChange();
+};

src/ash/public/interfaces/accessibility_controller_enums.mojom

@@ -0,0 +1,97 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Alert sent to the accessibility api.
+enum AccessibilityAlert {
+  // Default value, indicates no accessibility alert.
+  NONE,
+
+  // When caps lock is turned on.
+  CAPS_ON,
+
+  // When caps lock is turned off.
+  CAPS_OFF,
+
+  // When screen is turned on by tablet power button.
+  SCREEN_ON,
+
+  // When screen is turned off by tablet power button.
+  SCREEN_OFF,
+
+  // When window moved to another display by accelerators.
+  WINDOW_MOVED_TO_ANOTHER_DISPLAY,
+
+  // When the user attempts a keyboard command that requires a window to work,
+  // and none is available.
+  WINDOW_NEEDED,
+
+  // When the user enters window overview mode.
+  WINDOW_OVERVIEW_MODE_ENTERED
+};
+
+enum AccessibilityPanelState {
+  // Window bounds are set explicitly.
+  BOUNDED,
+
+  // Width of panel matches screen width, y_coord and height are set by bounds.
+  FULL_WIDTH,
+
+  // Panel occupies the full screen. Bounds are ignored.
+  FULLSCREEN
+};
+
+// These values are persisted to logs and should not be renumbered or re-used.
+// See tools/metrics/histograms/enums.xml.
+enum DictationToggleSource {
+  // Toggled by the keyboard command (Search + D).
+  kKeyboard,
+
+  // Toggled by the dictation button in the tray.
+  kButton,
+
+  // Switch Access context menu button.
+  kSwitchAccess,
+
+  // Chromevox chrome extension.
+  kChromevox
+};
+
+enum SelectToSpeakState {
+  // Select to Speak is not actively selecting text or speaking.
+  kSelectToSpeakStateInactive,
+
+  // Select to Speak is being used to actively select a new region. Note that
+  // it might also be speaking, but the selecting state takes precedence.
+  kSelectToSpeakStateSelecting,
+
+  // Select to Speak is currently speaking.
+  kSelectToSpeakStateSpeaking,
+};
+
+// The type of mouse event the dwell control feature should perform when
+// dwelling. These values are written to prefs and correspond to
+// AutoclickActionType in enums.xml, so should not be changed. New values
+// should be added at the end.
+[Extensible]
+enum AutoclickEventType {
+  // Perform a left click.
+  kLeftClick,
+
+  // Perform a right click.
+  kRightClick,
+
+  // Perform a drag and drop, i.e. click down at the first dwell, and up at the
+  // second dwell.
+  kDragAndDrop,
+
+  // Perform a double-click.
+  kDoubleClick,
+
+  // A non-action, i.e. nothing will happen at the end of the dwell time.
+  kNoAction,
+
+  // TODO(katie): Add scroll.
+};

src/ash/public/interfaces/accessibility_focus_ring_controller.mojom

@@ -0,0 +1,47 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+enum FocusRingBehavior { FADE_OUT_FOCUS_RING, PERSIST_FOCUS_RING };
+
+// Interface for ash client (e.g. Chrome) to control and query accessibility
+// focus ring features.
+interface AccessibilityFocusRingController {
+  // Sets the focus ring color for the given caller.
+  SetFocusRingColor(uint32 skcolor, string caller_id);
+
+  // Resets the focus ring color back to the default for the given caller.
+  ResetFocusRingColor(string caller_id);
+
+  // Draws a focus ring around the given set of rects in screen coordinates. Use
+  // |focus_ring_behavior| to specify whether the focus ring should persist or
+  // fade out for the given caller.
+  SetFocusRing(array<gfx.mojom.Rect> rects_in_screen,
+               FocusRingBehavior focus_ring_behavior,
+               string caller_id);
+
+  // Hides focus ring on screen for the given caller.
+  HideFocusRing(string caller_id);
+
+  // Draws a highlight at the given rects in screen coordinates. Rects may be
+  // overlapping and will be merged into one layer. This looks similar to
+  // selecting a region with the cursor, except it is drawn in the foreground
+  // rather than behind a text layer.
+  // TODO(katie): Add |caller_id| to highlights as well if other Accessibility
+  // tools or extensions want to use this API.
+  SetHighlights(array<gfx.mojom.Rect> rects_in_screen, uint32 skcolor);
+
+  // Hides highlight on screen.
+  // TODO(katie): Add |caller_id| to highlights as well.
+  HideHighlights();
+
+  // Enables double focus rings and sets the second color for the given caller.
+  EnableDoubleFocusRing(uint32 skcolor, string caller_id);
+
+  // Disables double focus rings for the given caller.
+  DisableDoubleFocusRing(string caller_id);
+};

src/ash/public/interfaces/app_list.mojom

@@ -0,0 +1,413 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/menu.mojom";
+import "components/sync/mojo/syncer.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "mojo/public/mojom/base/unguessable_token.mojom";
+import "services/content/public/mojom/navigable_contents_factory.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+import "ui/gfx/range/mojo/range.mojom";
+import "url/mojom/url.mojom";
+
+// A structure holding the common information which is sent between ash and,
+// chrome representing an app list item.
+// This structure should be kept as small as possible so that minimum data
+// is sent via mojo calls when an item is moved or reparented.
+struct AppListItemMetadata {
+  string id;          // The id of the app list item.
+  string name;        // The corresponding app or folder's name of the item.
+  string short_name;  // The corresponding app's short name of the item. It's
+                      // empty if the app doesn't have one or it's a folder.
+  string folder_id;   // The id of the item's folder.
+  syncer.mojom.StringOrdinal position; // The position of the item.
+  bool is_folder;     // Whether this item is a folder.
+  bool is_persistent; // Whether this folder is allowed to contain 1 item.
+  gfx.mojom.ImageSkia? icon;  // The icon of this item.
+  bool is_page_break; // Whether this item is a "page break" item.
+};
+
+// A structure holding the common information which is sent from chrome to ash,
+// representing a search result.
+struct SearchResultMetadata {
+  string id;                  // The id of the result.
+  mojo_base.mojom.String16 title;    // The title of the result, e.g. an app's
+                                     // name, an autocomplete query, etc.
+  mojo_base.mojom.String16 details;  // A detail string of this result.
+  mojo_base.mojom.String16 accessible_name;
+                                     // An text to be announced by a screen
+                                     // reader app.
+  array<SearchResultTag> title_tags;    // How the title matches the query. See
+                                        // the SearchResultTag section for
+                                        // more details.
+  array<SearchResultTag> details_tags;  // How the details match the query. See
+                                        // the SearchResultTag section for
+                                        // more details.
+  array<SearchResultAction> actions;    // Actions that can be performed on this
+                                        // result. See the SearchResultAction
+                                        // section for more details.
+  float rating = -1.0;        // The average rating score of the app
+                              // corresponding to this result, ranged from 0 to
+                              // 5. It's negative if there's no rating for the
+                              // result.
+  mojo_base.mojom.String16 formatted_price;  // A formatted price string, e.g.
+                                             // "$7.09", "HK$3.94", etc.
+  SearchResultType result_type;              // The type of this result.
+  SearchResultDisplayType display_type = kList;
+                                             // How this result is displayed.
+  double display_score;       // A score to determine the result display order.
+  bool is_omnibox_search;     // Whether this result is searched from Omnibox.
+  bool is_installing;         // Whether this result is installing.
+
+  url.mojom.Url? query_url;  // A query URL associated with this result. The
+                             // meaning and treatment of the URL
+                             // (e.g. displaying inline web contents) is
+                             // dependent on the result type.
+
+  string? equivalent_result_id;  // An optional id that identifies an equivalent
+                                 // result to this result. Answer card result
+                                 // has this set to remove the equivalent
+                                 // omnibox search-what-you-typed result when
+                                 // there is an answer card for the query.
+
+  gfx.mojom.ImageSkia? icon;  // The icon of this result.
+  gfx.mojom.ImageSkia? chip_icon;  // The icon of this result in a smaller
+                                   // dimension to be rendered in suggestion
+                                   // chip view.
+  gfx.mojom.ImageSkia? badge_icon;  // The badge icon of this result that
+                                    // indicates its type, e.g. installable from
+                                    // PlayStore, installable from WebStore,
+                                    // etc.
+  // If set to true, whether or not to send visibility updates through to to
+  // the chrome side when this result is set visible/invisible.
+  bool notify_visibility_change;
+};
+
+// All possible states of the app list.
+enum AppListState {
+  kStateApps = 0,
+  kStateSearchResults,
+  kStateStart,
+  kStateEmbeddedAssistant,
+};
+
+// The status of the app list model.
+enum AppListModelStatus {
+  kStatusNormal,
+  kStatusSyncing,  // Syncing apps or installing synced apps.
+};
+
+// The UI component the user launched the search result from. Must match
+// chrome/browser/ui/app_list/app_launch_event_logger.proto.
+enum AppListLaunchedFrom {
+  kLaunchedFromGrid = 1,
+  kLaunchedFromSuggestionChip,
+  kLaunchedFromShelf,
+  kLaunchedFromSearchBox,
+};
+
+// The UI representation of the search result. Currently all search results
+// that are not apps (OminboxResult, LauncherSearcResult, etc.) are grouped
+// into kSearchResult. Meanwhile SearchResultTileItemView (shown in zero state)
+// and suggested chips are considered kAppSearchResult.
+enum AppListLaunchType {
+ kSearchResult = 0,
+ kAppSearchResult,
+};
+
+// How the result should be displayed. Do not change the order of these as
+// they are used for metrics.
+enum SearchResultDisplayType {
+  kNone = 0,
+  kList,
+  kTile,
+  kRecommendation,
+  kCard,
+  // Add new values here.
+};
+
+// Type of the search result, which is set in Chrome.
+enum SearchResultType {
+  kInstalledApp,    // Installed apps.
+  kPlayStoreApp,    // Installable apps from PlayStore.
+  kInstantApp,      // Instant apps.
+  kInternalApp,     // Chrome OS apps.
+  kWebStoreApp,     // Installable apps from WebStore.
+  kWebStoreSearch,  // A search query in WebStore.
+  kOmnibox,         // Results from Omninbox.
+  kLauncher,        // Results from launcher search (currently only from Files).
+  kAnswerCard,      // WebContents based answer card.
+  kPlayStoreReinstallApp, // Reinstall recommendations from PlayStore.
+  kArcAppShortcut,  // ARC++ app shortcuts.
+  // Add new values here.
+};
+
+// A tagged range in search result text.
+struct SearchResultTag {
+  // Similar to ACMatchClassification::Style, the style values are not
+  // mutually exclusive.
+  int16 styles;
+  gfx.mojom.Range range;
+};
+
+// Data representing an action that can be performed on a search result.
+// An action could be represented as an image button, it will be always visibe
+// if |visible_on_hover| is false; otherwise how it is visible only when
+// when its associated search result is hovered.
+struct SearchResultAction {
+  mojo_base.mojom.String16 tooltip_text;
+  gfx.mojom.ImageSkia image;
+  bool visible_on_hover;
+};
+
+// The Chrome app list (aka Launcher), is the place where user can find and
+// organize all installed apps, or search for various types of information.
+//
+// For apps:
+// The app list displays apps synced across devices based on a user account, in
+// an order that can be modified by the user. It supports up-to-3-layer app
+// organization, the root app list, folders, and apps:
+// - Each app can stay in the root app list or a folder.
+// - Each folder holds more than one apps, which means it'll automatically get
+//   removed when there's only one app left in it.
+// - The OEM folder is a special folder where we cannot move items to/from it.
+//   And we cannot rename it.
+// - Other folders are renamable.
+// - Folders cannot hold folders.
+// - Different items/folders never have a same GUID.
+// - Every item/folder has a same GUID on different devices.
+//
+// For searching:
+// The app list supports various kinds of searching (e.g. apps, onmibox, etc).
+// And search results can be displayed in different formats (e.g. tiles, cards).
+// - Result ids are url like string, e.g.
+//   "chrome-extension://mgndgikekgjfcpckkfioiadnlibdjbkf/",
+//   "play://hhbckbkcbnemggclionhhgaceohjfdkl", etc.
+// - Different search results never have a same id.
+// - Every search result has a same id on different devices.
+// - Every search result can have a list of actions (e.g. install), see
+//   app_list::SearchResult::Action.
+//
+// Users can long press on any app list item or search result to show a context
+// menu. A context menu has a list of commands (e.g. open, uninstall, etc.).
+// - Different items/results may have different command lists.
+// - Each item/result usually has a same command list, but not always. Consider
+//   when we pin an app to the shelf and when we unpin it, the context menu
+//   looks different.
+// - Inside each command list, each command has its own unique command id.
+// - A same command in different command lists has a unique command id, see
+//   app_list::AppContextMenu::CommandId.
+
+// The Chrome app list has its UI running in Ash, and everything else running in
+// Chrome (e.g. syncing, user profile, etc). This controller is implemented in
+// Ash to handle calls from Chrome. These include:
+// - When app list data changes in Chrome, it should notifies the UI models and
+//   views in Ash to get updated. This can happen while syncing, searching, etc.
+// - When Chrome needs real-time UI information from Ash. This can happen while
+//   calculating recommended search results based on the app list item order.
+// - When app list states in Chrome change that require UI's response. This can
+//   happen while installing/uninstalling apps and the app list gets toggled.
+interface AppListController {
+  // Sets a client to handle calls from Ash.
+  SetClient(AppListClient client);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces that come from AppListModelUpdater:
+  // The following interfaces are called to update the app list model in Ash,
+  // including both the app list item model, search result model and search box
+  // model.
+  // Adds an item to AppListModel.
+  AddItem(AppListItemMetadata app_item);
+  // Adds an item into a certain folder in AppListModel.
+  AddItemToFolder(AppListItemMetadata app_item, string folder_id);
+  // Removes an item by its id from AppListModel.
+  RemoveItem(string id);
+  // Removes an item by its id, and also cleans up if its parent folder has a
+  // single child left.
+  RemoveUninstalledItem(string id);
+  // Moves the item with |id| to the folder with |folder_id|.
+  MoveItemToFolder(string id, string folder_id);
+  // Tells Ash what the current status of AppListModel should be,
+  // e.g. the model is under synchronization or in normal status.
+  SetStatus(AppListModelStatus status);
+  // Tells Ash what the current state of the app list should be,
+  // e.g. the user is searching for something, or showing apps, etc.
+  SetState(AppListState state);
+  // Highlights the given item in the app list. If not present and it is later
+  // added, the item will be highlighted after being added.
+  HighlightItemInstalledFromUI(string id);
+  // Sets whether the search engine is Google or not.
+  SetSearchEngineIsGoogle(bool is_google);
+  // Sets the text for screen readers on the search box, and updates the
+  // accessible names.
+  SetSearchTabletAndClamshellAccessibleName(
+      mojo_base.mojom.String16 tablet_accessible_name,
+      mojo_base.mojom.String16 clamshell_accessible_name);
+  // Sets the hint text to display when there is in input.
+  SetSearchHintText(mojo_base.mojom.String16 hint_text);
+  // Sets the text for the search box's Textfield and the voice search flag.
+  UpdateSearchBox(mojo_base.mojom.String16 text, bool initiated_by_user);
+  // Publishes search results to Ash to render them.
+  PublishSearchResults(array<SearchResultMetadata> results);
+  // Update the whole model, usually when profile changes happen in Chrome.
+  SetModelData(int32 profile_id,
+               array<AppListItemMetadata> apps,
+               bool is_search_engine_google);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces only used by ChromeAppListItem:
+  // These interfaces are called when an item's data is updated in Chrome.
+  // Updates an item's metadata (e.g. name, position, etc).
+  SetItemMetadata(string id, AppListItemMetadata metadata);
+  // Updates an item's icon.
+  SetItemIcon(string id, gfx.mojom.ImageSkia? icon);
+  // Updates whether an item is installing.
+  SetItemIsInstalling(string id, bool is_installing);
+  // Updates the downloaded percentage of an item.
+  SetItemPercentDownloaded(string id, int32 percent_downloaded);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces for item querying:
+  // Returns a map from each item's id to its shown index in the app list.
+  GetIdToAppListIndexMap() => (map<string, uint16> indices);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces for AppListSyncableService:
+  // These interfaces are called while dealing with the OEM folder in the
+  // AppListSyncableService in Chrome.
+  // Finds the OEM folder or creates one if it doesn't exist.
+  // |oem_folder_name|: the expected name of the OEM folder while creating.
+  // |preferred_oem_position|: the preferred position of the OEM folder while
+  //                           creating; if it's invalid then the final position
+  //                           is determined in Ash.
+  // |oem_folder|: the meta data of the existing/created OEM folder.
+  FindOrCreateOemFolder(
+      string oem_folder_name,
+      syncer.mojom.StringOrdinal preferred_oem_position)
+      => (AppListItemMetadata oem_folder);
+  // Resolves the position of the OEM folder.
+  // |preferred_oem_position|: the preferred position of the OEM folder; if it's
+  //                           invalid then the final position is determined in
+  //                           Ash.
+  // |oem_folder|: the meta data of the OEM folder, or null if it doesn't exist.
+  ResolveOemFolderPosition(
+      syncer.mojom.StringOrdinal preferred_oem_position)
+      => (AppListItemMetadata? oem_folder);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces for ChromeSearchReult:
+  SetSearchResultMetadata(SearchResultMetadata metadata);
+  SetSearchResultIsInstalling(string result_id, bool is_installing);
+  SetSearchResultPercentDownloaded(string result_id, int32 percent_downloaded);
+  NotifySearchResultItemInstalled(string result_id);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces for views:
+  // Dismisses the app list.
+  DismissAppList();
+  // Returns bounds of a rectangle to show an AppInfo dialog.
+  GetAppInfoDialogBounds() => (gfx.mojom.Rect bounds);
+  // Shows the app list and switches to |state|.
+  ShowAppListAndSwitchToState(AppListState state);
+  // Shows the app list.
+  ShowAppList();
+};
+
+// In contrast to AppListController, this client is implemented in Chrome to
+// handle calls from Ash. These include:
+// - When Chrome components are needed to get involved in the user's actions on
+//   app list views. This can happen while the user is searching, clicking on
+//   any app list item, etc.
+// - When view changes in Ash and we want to notify Chrome. This can happen
+//   while app list is performing animations.
+// - When a user action on views need information from Chrome to complete. This
+//   can happen while populating context menu models, which depends on item data
+//   in Chrome.
+interface AppListClient {
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces on searching:
+  // Triggers a search query.
+  // |trimmed_query|: the trimmed input texts from the search text field.
+  StartSearch(mojo_base.mojom.String16 trimmed_query);
+  // Opens a search result and logs to metrics when its view is clicked or
+  // pressed.
+  // |result_id|: the id of the search result the user wants to open.
+  // |launched_from|: where the result was launched.
+  // |launch_type|: how the result is represented in the UI.
+  // |suggestion_index|: the position of the result as a suggestion chip in
+  // the AppsGridView or the position of the result in the zero state search
+  // page.
+  OpenSearchResult(string result_id, int32 event_flags,
+                   AppListLaunchedFrom launched_from,
+                   AppListLaunchType launch_type, int32 suggestion_index);
+  // Invokes a custom action on a result with |result_id|.
+  // |action_index| corresponds to the index of an action on the search result,
+  // for example, installing. They are stored in SearchResult::actions_.
+  InvokeSearchResultAction(string result_id,
+                           int32 action_index,
+                           int32 event_flags);
+  // Returns the context menu model for the search result with |result_id|, or
+  // an empty array if there is currently no menu for the result.
+  GetSearchResultContextMenuModel(string result_id) => (array<MenuItem> items);
+  // Invoked when a context menu item of a search result is clicked.
+  // |result_id|: the clicked search result's id.
+  // |command_id|: the clicked menu item's command id.
+  // |event_flags|: flags from the event which triggered this command.
+  SearchResultContextMenuItemSelected(string result_id,
+                                      int32 command_id,
+                                      int32 event_flags);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces on the app list UI:
+  // Invoked when the app list is shown in the display with |display_id|.
+  ViewShown(int64 display_id);
+  // Invoked when the app list is closed.
+  ViewClosing();
+  // Notifies target visibility changes of the app list.
+  OnAppListTargetVisibilityChanged(bool visible);
+  // Notifies visibility changes of the app list.
+  OnAppListVisibilityChanged(bool visible);
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Interfaces on app list items. |profile_id| indicates the profile to which
+  // app list items belong. In multi-profile mode, each profile has its own
+  // app list model updater:
+  // Activates (opens) the item with |id|.
+  ActivateItem(int32 profile_id, string id, int32 event_flags);
+  // Returns the context menu model for the item with |id|, or an empty array if
+  // there is currently no menu for the item (e.g. during install).
+  GetContextMenuModel(int32 profile_id, string id) => (array<MenuItem> items);
+  // Invoked when a context menu item of an app list item is clicked.
+  // |id|: the clicked AppListItem's id.
+  // |command_id|: the clicked menu item's command id.
+  // |event_flags|: flags from the event which triggered this command.
+  ContextMenuItemSelected(int32 profile_id,
+                          string id,
+                          int32 command_id,
+                          int32 event_flags);
+  // Invoked when a folder is created in Ash (e.g. merge items into a folder).
+  OnFolderCreated(int32 profile_id, AppListItemMetadata folder);
+  // Invoked when a folder has only one item left and so gets removed.
+  OnFolderDeleted(int32 profile_id, AppListItemMetadata folder);
+  // Invoked when user changes a folder's name or an item's position.
+  OnItemUpdated(int32 profile_id, AppListItemMetadata folder);
+  // Invoked when a "page break" item is added with |id| and |position|.
+  OnPageBreakItemAdded(int32 profile_id,
+                       string id,
+                       syncer.mojom.StringOrdinal position);
+  // Invoked when a "page break" item with |id| is deleted.
+  OnPageBreakItemDeleted(int32 profile_id, string id);
+
+  // Updated when item with |id| is set to |visible|. Only sent if
+  // |notify_visibility_change| was set on the SearchResultMetadata.
+  OnSearchResultVisibilityChanged(string id, bool visibility);
+
+  // Acquires a NavigableContentsFactory (indirectly) from the Content Service
+  // to allow the app list to display embedded web contents. Currently used only
+  // for answer card search results.
+  GetNavigableContentsFactory(content.mojom.NavigableContentsFactory& request);
+};

src/ash/public/interfaces/app_list.typemap

@@ -0,0 +1,21 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+mojom = "//ash/public/interfaces/app_list.mojom"
+public_headers = [ "//ash/public/cpp/app_list/app_list_types.h" ]
+traits_headers = [ "//ash/public/cpp/app_list/app_list_struct_traits.h" ]
+sources = [
+  "//ash/public/cpp/app_list/app_list_struct_traits.cc",
+]
+deps = [
+  "//ui/gfx/range/mojo:struct_traits",
+]
+type_mappings = [
+  "ash.mojom.AppListState=ash::AppListState",
+  "ash.mojom.AppListModelStatus=ash::AppListModelStatus",
+  "ash.mojom.SearchResultType=ash::SearchResultType",
+  "ash.mojom.SearchResultDisplayType=ash::SearchResultDisplayType",
+  "ash.mojom.SearchResultTag=ash::SearchResultTag",
+  "ash.mojom.SearchResultAction=ash::SearchResultAction",
+]

src/ash/public/interfaces/arc_custom_tab.mojom

@@ -0,0 +1,22 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "mojo/public/mojom/base/unguessable_token.mojom";
+
+// An interface that an ash user uses to interact with each ARC custom tab.
+interface ArcCustomTabView {
+  // Embeds the remote view specified by the token.
+  EmbedUsingToken(mojo_base.mojom.UnguessableToken token);
+};
+
+// An exported object in ash which lets an ash consumer set a client interface.
+interface ArcCustomTabController {
+  // Creates an ArcCustomTabView instance for the ARC window specified by the
+  // task ID and the surface ID.
+  // May return null when the arguments are invalid.
+  CreateView(int32 task_id, int32 surface_id, int32 top_margin)
+      => (ArcCustomTabView? controller);
+};

src/ash/public/interfaces/ash_display_controller.mojom

@@ -0,0 +1,18 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Allows configuring various display related state.
+interface AshDisplayController {
+  // ============================ Virtual Terminal ============================
+
+  // Take control of all display output. This is called when switching from the
+  // virtual terminal back to Chrome in response to a dbus message.
+  TakeDisplayControl() => (bool status);
+
+  // Relinquish control of all display output. This is called when switching
+  // from Chrome to the virtual terminal in response to a dbus message.
+  RelinquishDisplayControl() => (bool status);
+};

src/ash/public/interfaces/ash_message_center_controller.mojom

@@ -0,0 +1,101 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/arc/common/notifications.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+import "ui/message_center/public/mojo/notification.mojom";
+import "ui/message_center/public/mojo/notifier_id.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "mojo/public/mojom/base/unguessable_token.mojom";
+
+// A struct that contains information for presenting a notifier in a settings
+// panel.
+struct NotifierUiData {
+  // The notifier (e.g. an extension).
+  message_center.mojom.NotifierId notifier_id;
+
+  // The user-visible name of the notifier (e.g. an extension's name).
+  mojo_base.mojom.String16 name;
+
+  // True if notifications from the notifier are presently enabled.
+  bool enabled;
+
+  // True if the setting is enforced by administrator and the user can't change.
+  bool enforced;
+
+  // An icon displayed next to the name.
+  gfx.mojom.ImageSkia? icon;
+};
+
+// The message center controller funnels notification requests from the client
+// to the MessageCenter.
+interface AshMessageCenterController {
+  SetClient(associated AshMessageCenterClient client);
+
+  // Sets the ARC notification instance.
+  SetArcNotificationsInstance(arc.mojom.NotificationsInstance instance);
+
+  // Shows a notification. |display_token| will be used to reference this
+  // notification for AshMessageCenterClient::Close().
+  ShowClientNotification(message_center.mojom.Notification notification,
+                         mojo_base.mojom.UnguessableToken display_token);
+
+  // Closes a notification by the notification ID.
+  CloseClientNotification(string id);
+
+  UpdateNotifierIcon(message_center.mojom.NotifierId notifier_id,
+                     gfx.mojom.ImageSkia icon);
+
+  NotifierEnabledChanged(message_center.mojom.NotifierId notifier_id,
+                         bool enabled);
+
+  // Gets a list of all the notifications in the message center.
+  GetActiveNotifications() =>
+      (array<message_center.mojom.Notification> notifications);
+
+  // Changes the quiet mode state in the message center.
+  SetQuietMode(bool enabled);
+};
+
+// The message center client interface mimics
+// message_center::NotificationDelegate. The ID strings match the id passed in
+// |notification| in ShowClientNotification and the format of the ID is up to
+// the client.
+interface AshMessageCenterClient {
+  // Called when a notification previously displayed by the client is closed.
+  HandleNotificationClosed(mojo_base.mojom.UnguessableToken display_token,
+                           bool by_user);
+
+  // Called when the body of a notification is clicked.
+  HandleNotificationClicked(string id);
+
+  // Called when a notification that has buttons (e.g., "Learn more") receives a
+  // click on one of the buttons. |reply| is a user-provided string for cases
+  // where the button had a text input field attached to it.
+  HandleNotificationButtonClicked(string id, int32 button_index,
+                                  mojo_base.mojom.String16? reply);
+
+  // Called when a notification's settings button has been pressed (and the
+  // handler is SettingsButtonHandler::DELEGATE).
+  HandleNotificationSettingsButtonClicked(string id);
+
+  // Called when a notification has been disabled (via inline settings).
+  DisableNotification(string id);
+
+  // Called when a user enables or disables notifications from the given
+  // notifier.
+  SetNotifierEnabled(message_center.mojom.NotifierId notifier_id, bool enabled);
+
+  // Asks the client for a list of notifiers and associated UI information to be
+  // displayed in a settings panel.
+  GetNotifierList() => (array<NotifierUiData> notifiers);
+
+  // Gets ARC app id from a given package name.
+  GetArcAppIdByPackageName(string package_name) => (string app_id);
+
+  // Show the lockscreen notification setting on the Chrome OS setting.
+  ShowLockScreenNotificationSettings();
+};

src/ash/public/interfaces/ash_window_manager.mojom

@@ -0,0 +1,58 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/menu.mojom";
+import "ui/events/mojo/event_constants.mojom";
+
+// The previewed snap state for a window, corresponding to the use of a
+// PhantomWindowController.
+enum SnapDirection {
+  kNone,   // No snap preview.
+  kLeft,   // The phantom window controller is previewing a snap to the left.
+  kRight,  // The phantom window controller is previewing a snap to the left.
+};
+
+enum OrientationLockType {
+  kAny,
+  kNatural,
+  kCurrent,
+  kPortrait,
+  kLandscape,
+  kPortraitPrimary,
+  kPortraitSecondary,
+  kLandscapePrimary,
+  kLandscapeSecondary,
+};
+
+// Interface exposed via WindowTree::BindWindowManagerInterface(). This
+// interface is used for functionality specific to Ash that is associated with
+// windows created by the window service.
+interface AshWindowManager {
+  AddWindowToTabletMode(uint64 window_id);
+
+  ShowSnapPreview(uint64 window_id, SnapDirection snap);
+
+  CommitSnap(uint64 window_id, SnapDirection snap);
+
+  // Locks or unlocks the screen orientation. The provided window is the source
+  // of the orientation request and need not be a top level window, but the
+  // client connection type must not be an embedding (i.e. renderer).
+  LockOrientation(uint64 window_id, OrientationLockType type);
+  UnlockOrientation(uint64 window_id);
+
+  // Maximizes the window in response to a double click or tap on the HTCAPTION
+  // area.
+  MaximizeWindowByCaptionClick(uint64 window_id, ui.mojom.PointerKind pointer);
+
+  // Plays the window bounce animation (scale the window up and down).
+  BounceWindow(uint64 window_id);
+
+  // Sets the context menu items to be displayed on a window's frame, for
+  // windows where the frame is provided by Ash. |delegate| handles interaction
+  // with the menu.
+  SetWindowFrameMenuItems(uint64 window_id, array<MenuItem> menu_items,
+                          MenuDelegate delegate);
+};

src/ash/public/interfaces/assistant_controller.mojom

@@ -0,0 +1,93 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/assistant_image_downloader.mojom";
+import "ash/public/interfaces/assistant_setup.mojom";
+import "chromeos/services/assistant/public/mojom/assistant.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Interface to AssistantController which is owned by Shell in Ash. This is
+// typically used by the Assistant service to provide the controller with an
+// interface to itself, as well as by the Assistant client in chrome/browser to
+// provide interfaces to delegates which depend on browser.
+interface AssistantController {
+  // Provides a reference to the underlying |assistant| service.
+  SetAssistant(chromeos.assistant.mojom.Assistant assistant);
+
+  // Provides an interface to the |assistant_image_downloader| owned by
+  // AssistantClient.
+  SetAssistantImageDownloader(
+    AssistantImageDownloader assistant_image_downloader);
+
+  // Opens Google Assistant settings.
+  OpenAssistantSettings();
+
+  // Show speaker id enrollment flow.
+  StartSpeakerIdEnrollmentFlow();
+
+  // Send Assistant feedback to Assistant server. If |pii_allowed| is
+  // true then the user gives permission to attach Assistant debug info.
+  // |feedback_description| is user's feedback input.
+  SendAssistantFeedback(
+    bool pii_allowed,
+    string feedback_description,
+    string screenshot_png);
+};
+
+// Interface to the AssistantAlarmTimerController which is owned by the
+// AssistantController. Currently used by the Assistant service to notify Ash
+// of changes to the underlying alarm/timer state in LibAssistant.
+interface AssistantAlarmTimerController {
+  // Invoked when a timer has started sounding.
+  OnTimerSoundingStarted();
+
+  // Invoked when a timer has finished sounding.
+  OnTimerSoundingFinished();
+};
+
+// Interface to the AssistantNotificationController which is owned by the
+// AssistantController. Currently used by the Assistant service to modify
+// Assistant notification state in Ash in response to LibAssistant events.
+interface AssistantNotificationController {
+  // Requests that the specified |notification| be added or updated. If the
+  // |client_id| for |notification| matches that of an existing notification,
+  // an update will occur. Otherwise, a new notification will be added.
+  AddOrUpdateNotification(
+    chromeos.assistant.mojom.AssistantNotification notification);
+
+  // Requests that the notification uniquely identified by |id| be removed. If
+  // |from_server| is true the request to remove was initiated by the server.
+  RemoveNotificationById(string id, bool from_server);
+
+  // Requests that all notifications associated with the given |grouping_key|
+  // be removed. If |from_server| is true the request to remove was initiated
+  // by the server.
+  RemoveNotificationByGroupingKey(string grouping_key, bool from_server);
+
+  // Requests that all notifications be removed. If |from_server| is true the
+  // request was initiated by the server.
+  RemoveAllNotifications(bool from_server);
+};
+
+// Interface to the AssistantScreenContextController which is owned by the
+// AssistantController. Currently used by the Assistant service to request
+// screenshots.
+interface AssistantScreenContextController {
+  // Requests a screenshot of the region enclosed by |rect| and returns the
+  // screenshot encoded in JPEG format. If |rect| is empty, it returns a
+  // fullscreen screenshot.
+  RequestScreenshot(gfx.mojom.Rect rect) => (array<uint8> screenshot);
+};
+
+// Interface to the AssistantSetupController which is owned by the
+// AssistantController. Currently used by AssistantSetup in chrome/browser
+// to provide an interface to itself. This is used for triggering a runtime
+// onboarding flow.
+interface AssistantSetupController {
+  // Provides an interface to the |assistant_setup| owned by AssistantClient
+  // in chrome/browser.
+  SetAssistantSetup(AssistantSetup assistant_setup);
+};

src/ash/public/interfaces/assistant_image_downloader.mojom

@@ -0,0 +1,20 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+import "url/mojom/url.mojom";
+
+// Interface for a class which is responsible for downloading images on behalf
+// of the Assistant UI in ash.
+interface AssistantImageDownloader {
+  // Downloads the image found at |url| for the profile associated with
+  // |account_id|. On completion, the supplied callback is run with the
+  // downloaded |image|. In the event that the download attempt fails, a NULL
+  // image will be returned.
+  Download(signin.mojom.AccountId account_id, url.mojom.Url url)
+    => (gfx.mojom.ImageSkia image);
+};

src/ash/public/interfaces/assistant_setup.mojom

@@ -0,0 +1,22 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+enum FlowType {
+  // The whole consent flow.
+  CONSENT_FLOW,
+  // The speaker id enrollment flow.
+  SPEAKER_ID_ENROLLMENT,
+  // The speaker id retrain flow.
+  SPEAKER_ID_RETRAIN,
+};
+
+// Interface for a class which is responsible for start Assistant OptIn flow.
+interface AssistantSetup {
+  // Start the assistant setup flow.
+  // |completed| is true if the user has completed the entire flow and opted in
+  // to using assistant.
+  StartAssistantOptInFlow(FlowType type) => (bool completed);
+};

src/ash/public/interfaces/assistant_volume_control.mojom

@@ -0,0 +1,27 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Interface to control system volume through Ash.
+interface AssistantVolumeControl {
+  // Sets system volume to |volume|, which is between 0 - 100.
+  SetVolume(int32 volume, bool user_initiated);
+
+  // Sets mute state to |muted|.
+  SetMuted(bool muted);
+
+  // Adds volume observer. The observer will be immediately notified of volume
+  // and mute status when added.
+  AddVolumeObserver(VolumeObserver observer);
+};
+
+// Observes volume state changes.
+interface VolumeObserver {
+  // Called when volume is updated.
+  OnVolumeChanged(int32 volume);
+
+  // Called when mute state changed.
+  OnMuteStateChanged(bool muted);
+};

src/ash/public/interfaces/cast_config.mojom

@@ -0,0 +1,78 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// The type of icon the sink is associated with. These values match
+// media_router::SinkIconType.
+enum SinkIconType {
+  CAST = 0,
+  CAST_AUDIO_GROUP = 1,
+  CAST_AUDIO = 2,
+  MEETING = 3,
+  HANGOUT = 4,
+  EDUCATION = 5,
+  WIRED_DISPLAY = 6,
+  GENERIC = 7
+};
+
+struct CastSink {
+  string id;
+  string name;
+  string domain;
+
+  // Icon which describes the type of sink media is being routed to.
+  SinkIconType sink_icon_type = SinkIconType.GENERIC;
+};
+
+enum ContentSource {
+  UNKNOWN,
+  TAB,
+  DESKTOP
+};
+
+struct CastRoute {
+  string id;
+  string title;
+
+  // Is the activity source this computer? ie, are we mirroring the display?
+  bool is_local_source = false;
+
+  // What is source of the content? For example, we could be DIAL casting a
+  // tab or mirroring the entire desktop.
+  ContentSource content_source = ContentSource.UNKNOWN;
+};
+
+struct SinkAndRoute {
+  CastSink sink;
+  CastRoute route;
+};
+
+// Allows clients (e.g. Chrome browser) to interface with the cast item in the
+// system tray.
+interface CastConfig {
+  // Sets the client interface. This client interface will receive commands from
+  // ash and provide OnDevicesUpdated() calls.
+  SetClient(associated CastConfigClient client);
+
+  // Invoked whenever there is new sink or route information available.
+  OnDevicesUpdated(array<SinkAndRoute> device);
+};
+
+// This delegate allows the UI code in ash, e.g. |TrayCastDetailedView|,
+// to access the cast system.
+//
+// TODO(erg): Eventually, this should no longer be exported by chrome, but
+// should be exported by a separate cast service.
+interface CastConfigClient {
+  // Request fresh data from the backend. When the data is available, all
+  // registered observers will get called.
+  RequestDeviceRefresh();
+
+  // Initiate a casting session to |sink|.
+  CastToSink(CastSink sink);
+
+  // A user-initiated request to stop the given cast session.
+  StopCasting(CastRoute route);
+};

src/ash/public/interfaces/constants.mojom

@@ -0,0 +1,7 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+const string kServiceName = "ash";

src/ash/public/interfaces/cros_display_config.mojom

@@ -0,0 +1,275 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+import "ui/display/mojo/display.mojom";
+
+// All points, bounds, and insets are in display pixels unless otherwise
+// sepcified.
+
+// SetDisplayLayoutInfo or SetDisplayProperties result.
+enum DisplayConfigResult {
+  kSuccess = 0,
+  kInvalidOperationError,
+  kInvalidDisplayIdError,
+  kUnifiedNotEnabledError,
+  kPropertyValueOutOfRangeError,
+  kNotSupportedOnInternalDisplayError,
+  kNegativeValueError,
+  kSetDisplayModeError,
+  kInvalidDisplayLayoutError,
+  kMirrorModeSingleDisplayError,
+  kMirrorModeSourceIdError,
+  kMirrorModeDestIdError,
+  kCalibrationNotAvailableError,
+  kCalibrationNotStartedError,
+  kCalibrationInProgressError,
+  kCalibrationInvalidDataError,
+  kCalibrationFailedError,
+};
+
+// Describes how the displays are laid out.
+enum DisplayLayoutMode {
+  // In normal mode displays are laid out as described by
+  // DisplayLayoutInfo.layouts.
+  kNormal = 0,
+  // In unified desktop mode, a single desktop will be stretched across all
+  // available displays.
+  kUnified,
+  // In mirrored mode, the display defined by DisplayLayoutInfo.mirrorSourceId
+  // will be mirrored in the displays defined by
+  // DisplayLayoutInfo.mirrorDestinationIds, or in all other displays if
+  // mirrorDestinationIds is empty.
+  kMirrored
+};
+
+// Describes a display edge.
+enum DisplayLayoutPosition {
+  kTop = 0,
+  kRight,
+  kBottom,
+  kLeft
+};
+
+// Describes an overscan or touch calibration operation.
+enum DisplayConfigOperation {
+  kStart = 0,
+  kAdjust,
+  kReset,
+  kComplete,
+  kShowNative,
+};
+
+// Defines a pair of display + touch points used for touch calibration.
+struct TouchCalibrationPair {
+  // The coordinates of the display point.
+  gfx.mojom.Point display_point;
+  // The coordinates of the touch point corresponding to the display point.
+  gfx.mojom.Point touch_point;
+};
+
+// Defines the data required for touch calibration.
+struct TouchCalibration {
+  // Must contain exactly four pairs of touch calibration points.
+  array<TouchCalibrationPair> pairs;
+  // Width and height of the display area when the touch calibration was
+  // performed.
+  gfx.mojom.Size bounds;
+};
+
+// Defines the layout of a single display.
+struct DisplayLayout {
+  // The unique identifier of the display.
+  string id;
+  // The unique identifier of the parent display. Empty for the root display.
+  string parent_id;
+  // The edge of the display that is shared with the parent display. Ignored for
+  // the root display.
+  DisplayLayoutPosition position;
+  // The offset of the display along the connected edge. 0 indicates that
+  // the topmost or leftmost corner is aligned.
+  int32 offset;
+};
+
+// Defines the layout mode and details.
+struct DisplayLayoutInfo {
+  // The layout mode to use, see DisplayLayoutMode for details.
+  DisplayLayoutMode layout_mode;
+  // Ignored if If layout_mode is not kMirrored. Otherwise, if provided,
+  // specifies the unique identifier of the source display for mirroring. If
+  // not provided, mirror_destination_ids will be ignored and default ('normal')
+  // mirrored mode will be enabled.
+  string? mirror_source_id;
+  // Ignored if layout_mode is not kMirrored. Otherwise, if provided, specifies
+  // the unique identifiers of the displays to mirror the source display. If not
+  // provided or empty, all displays will mirror the source display.
+  array<string>? mirror_destination_ids;
+  // An array of layouts describing a directed graph of displays. Required if
+  // layout_mode is kNormal or kMirrored and not all displays are mirrored
+  // ('mixed' mode). Ignored if layout_mode is kUnified.
+  array<DisplayLayout>? layouts;
+};
+
+// EDID extracted parameters. Field description refers to "VESA ENHANCED
+// EXTENDED DISPLAY IDENTIFICATION DATA STANDARD (Defines EDID Structure
+// Version 1, Revision 4)" Release A, Revision 2 September 25, 2006.
+// https://www.vesa.org/vesa-standards
+struct Edid {
+  // Three character manufacturer code, Sec. 3.4.1 page 21.
+  string manufacturer_id;
+  // Two byte manufacturer-assigned code, Sec. 3.4.2 page 21.
+  string product_id;
+  // Year of manufacture. Sec. 3.4.4 page 22.
+  int32 year_of_manufacture;
+};
+
+// Struct wrapper so that the property can be optional.
+struct DisplayRotation {
+  display.mojom.Rotation rotation;
+};
+
+// Defines the properties for a display mode, i.e. a valid size and scale.
+struct DisplayMode {
+  // The display mode size in device independent (user visible) pixels.
+  gfx.mojom.Size size;
+  // The display mode size in native pixels.
+  gfx.mojom.Size size_in_native_pixels;
+  // The display mode device scale factor.
+  double device_scale_factor;
+  // The display mode refresh rate in hertz.
+  double refresh_rate;
+  // True if the mode is the display's native mode.
+  bool is_native;
+  // True if the mode is interlaced.
+  bool is_interlaced;
+};
+
+// Defines the properties of an individual display, returned by
+// GetDisplayLayoutInfo.
+struct DisplayUnitInfo {
+  // The unique identifier of the display.
+  string id;
+  // The user-friendly name (e.g. "Acme LCD monitor").
+  string name;
+  // EDID properties when available.
+  Edid? edid;
+  // True if this is the primary display.
+  bool is_primary;
+  // True if this is an internal display.
+  bool is_internal;
+  // True if this display is enabled.
+  bool is_enabled;
+  // True when the display is in tablet mode.
+  bool is_tablet_mode;
+  // True if this display has a touch input device associated with it.
+  bool has_touch_support;
+  // True if this display has an accelerometer associated with it.
+  bool has_accelerometer_support;
+  // The number of pixels per inch along the x-axis.
+  double dpi_x;
+  // The number of pixels per inch along the y-axis.
+  double dpi_y;
+  // The display's clockwise rotation.
+  display.mojom.Rotation rotation;
+  // The display's logical bounds.
+  gfx.mojom.Rect bounds;
+  // The display's ovserscan insets within its screen's bounds.
+  gfx.mojom.Insets overscan;
+  // The usable work area of the display within the display bounds. Excludes
+  // areas of the display reserved for the OS, e.g. the taskbar and launcher.
+  gfx.mojom.Rect work_area;
+  // The index of the selected display mode.
+  int32 selected_display_mode_index;
+  // The list of available display modes.
+  array<DisplayMode> available_display_modes;
+  // The ratio between the display's current and default zoom. i.e. 1.0 is
+  // is equivalent to 100% zoom, and value 1.5 is equivalent to 150% zoom.
+  double display_zoom_factor;
+  // The list of allowed zoom factor values for the display.
+  array<double> available_display_zoom_factors;
+};
+
+// Properties for configuring an individual display, used in
+// SetDisplayProperties.
+struct DisplayConfigProperties {
+  // If true, makes the display primary. No-op if set to false.
+  bool set_primary;
+  // If provided, sets the display's overscan insets to the provided value.
+  // Note: overscan values may not be negative or larger than a half of the
+  // screen's size. Overscan cannot be changed on the internal monitor.
+  gfx.mojom.Insets? overscan;
+  // If provided updates the display's rotation.
+  DisplayRotation? rotation;
+  // If provided, updates the display's logical bounds origin. Note: when
+  // updating the display origin, some constraints will be applied. so the final
+  // bounds origin may be different than the one set. The actual bounds will be
+  // reflected in DisplayUnitInfo. Cannot be changed on the primary display (or
+  // if set_primary is true).
+  gfx.mojom.Point? bounds_origin;
+  // If non zero, updates the zoom associated with the display. This zoom
+  // performs relayout and repaint thus resulting in a better quality zoom than
+  // just performing a pixel by pixel stretch enlargement.
+  double display_zoom_factor;
+  // Optional DisplayMode properties to set. This should match one of the
+  // modes listed in DisplayUnitInfo.available_display_modes. Other custom
+  // modes may or may not be valid.
+  DisplayMode? display_mode;
+};
+
+// Interface for configuring displays in Chrome OS. Currently this is
+// implemented in Ash through classes owned by ash::Shell, but the interface
+// should not have any Ash specific dependencies.
+interface CrosDisplayConfigController {
+  // Observers are notified when the display layout or any display properties
+  // change.
+  AddObserver(associated CrosDisplayConfigObserver observer);
+
+  // Returns the display layout info, including the list of layouts.
+  GetDisplayLayoutInfo() => (DisplayLayoutInfo info);
+
+  // Sets the layout mode, mirroring, and layouts. Returns kSuccess if the
+  // layout is valid or an error value otherwise.
+  SetDisplayLayoutInfo(DisplayLayoutInfo info) => (DisplayConfigResult result);
+
+  // Returns the properties for all displays. If |single_unified| is true, a
+  // single display will be returned if the display layout is in unifed mode.
+  GetDisplayUnitInfoList(bool single_unified) =>
+    (array<DisplayUnitInfo> info_list);
+
+  // Sets |properties| for individual display with identifier |id|. Returns
+  // Success if the properties are valid or an error value otherwise.
+  SetDisplayProperties(string id, DisplayConfigProperties properties) =>
+    (DisplayConfigResult result);
+
+  // Enables or disables unified desktop mode. If the current display mode is
+  // kMirrored the mode will not be changed, if it is kNormal then the mode will
+  // be set to kUnified.
+  SetUnifiedDesktopEnabled(bool enabled);
+
+  // Starts, updates, completes, or resets overscan calibration for the display
+  // with identifier |display_id|. If |op| is kAdjust, |delta| describes the
+  // amount to change the overscan value. Runs the callback after performing the
+  // operation or on error.
+  OverscanCalibration(string display_id,
+                      DisplayConfigOperation op,
+                      gfx.mojom.Insets? delta) => (DisplayConfigResult result);
+
+  // Starts, completes, or resets touch calibration for the display with
+  // identifier |display_id|. If |op| is kShowNative shows the native
+  // calibration UI. Runs the callback after performing the operation or on
+  // error.
+  TouchCalibration(string display_id,
+                   DisplayConfigOperation op,
+                   TouchCalibration? calibration) =>
+    (DisplayConfigResult result);
+};
+
+// Interface for clients needing to be informed when the display configuration
+// changes.
+interface CrosDisplayConfigObserver {
+  // Called any time the display configuration changes.
+  OnDisplayConfigChanged();
+};

src/ash/public/interfaces/display_output_protection.mojom

@@ -0,0 +1,32 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// An interface for clients that are allowed to control the display output
+// content protection. Multiple clients can request content protection at
+// the same time, and the display will be protected until all clients are
+// closed or set |desired_method_mask| to 0 with |SetContentProtection|.
+interface DisplayOutputProtection {
+  // Queries link status and protection status.
+  // |link_mask| is the type of connected display links, which is a bitmask of
+  // DisplayConnectionType values.
+  // |protection_mask)| is the desired protection methods, which is a bitmask of
+  // the ContentProtectionMethod values.
+  // See //ui/display/types/display_constants.h for DisplayConnectionType and
+  // ContentProtectionMethod.
+  QueryContentProtectionStatus(int64 display_id) => (bool success,
+                                                     uint32 link_mask,
+                                                     uint32 protection_mask);
+
+  // Requests the desired protection methods.
+  // |protection_mask| is the desired protection methods, which is a bitmask
+  // of the ContentProtectionMethod values. When the interface is closed,
+  // the content protection mask will be reverted.
+  // Return true on success. Return false if it failed to make the protection
+  // request on the given display.
+  // See //ui/display/types/display_constants.h for ContentProtectionMethod.
+  SetContentProtection(int64 display_id,
+                       uint32 desired_method_mask) => (bool success);
+};

src/ash/public/interfaces/docked_magnifier_controller.mojom

@@ -0,0 +1,18 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Used by a client (e.g. Chrome) to notify ash of focus change events of nodes
+// in webpages.
+interface DockedMagnifierController {
+  // Requests that the Docked Magnifier centers its viewport around this given
+  // screen point. This can be used by a client (e.g. Chrome) to notify ash of
+  // focus change events in e.g. webpages when feature is enabled. Note that ash
+  // observes the focus change events of the text input carets in editable nodes
+  // by itself.
+  CenterOnPoint(gfx.mojom.Point point_in_screen);
+};

src/ash/public/interfaces/event_properties.mojom

@@ -0,0 +1,13 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// This is added to KeyEvents that ash has an accelerator for. This is only used
+// for accelerators ash does not handle immediately. That is, those the target
+// is given priority to process.
+// No value is set for this property, the presence indicates ash has an
+// accelerator.
+const string kWillProcessAccelerator_KeyEventProperty =
+  "ash:will-process-accelerator";

src/ash/public/interfaces/event_rewriter_controller.mojom

@@ -0,0 +1,43 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/events/mojo/event.mojom";
+
+// Allows a client to implement spoken feedback features; used for ChromeVox.
+interface SpokenFeedbackEventRewriterDelegate {
+  // Used to send key events to the ChromeVox extension. |capture| is true if
+  // the rewriter discarded the event, false if the rewriter continues event
+  // propagation.
+  DispatchKeyEventToChromeVox(ui.mojom.Event event, bool capture);
+
+  // Used to send mouse events to the ChromeVox extension.
+  DispatchMouseEventToChromeVox(ui.mojom.Event event);
+};
+
+// Allows clients to toggle some event rewriting behavior.
+interface EventRewriterController {
+  // Enables the KeyboardDrivenEventRewriter, which is disabled by default.
+  // This only applies when the user is on the login screen.
+  SetKeyboardDrivenEventRewriterEnabled(bool enabled);
+
+  // If true, Shift + Arrow keys are rewritten to Tab/Shift-Tab keys.
+  // This only applies when the KeyboardDrivenEventRewriter is active.
+  SetArrowToTabRewritingEnabled(bool enabled);
+
+  // Set the delegate used by the spoken feedback event rewriter.
+  SetSpokenFeedbackEventRewriterDelegate(
+      SpokenFeedbackEventRewriterDelegate delegate);
+
+  // Continue dispatch of key events that were unhandled by ChromeVox.
+  // TODO(crbug.com/839541): ChromeVox should not repost unhandled events.
+  OnUnhandledSpokenFeedbackEvent(ui.mojom.Event event);
+
+  // Discards key events and sends to spoken feedback when true.
+  CaptureAllKeysForSpokenFeedback(bool capture);
+
+  // Sends mouse events to ChromeVox when true.
+  SetSendMouseEventsToDelegate(bool value);
+};

src/ash/public/interfaces/first_run_helper.mojom

@@ -0,0 +1,40 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Allows clients to control pieces of the UI used in first-run tutorials.
+// Exists because the first-run tutorial is a component extension run by
+// Chrome. Methods exist here instead of on the Shelf or SystemTray interfaces
+// due to small behavior differences (all methods only affect the primary
+// display, opening the system tray bubble is persistent, etc.).
+interface FirstRunHelper {
+  // Cleans up the ash UI on tutorial start.
+  Start(FirstRunHelperClient client);
+
+  // Restores the ash UI on tutorial stop.
+  Stop();
+
+  // Returns the bounds of the app list button on the primary display in screen
+  // coordinates.
+  GetAppListButtonBounds() => (gfx.mojom.Rect screen_bounds);
+
+  // Opens the system tray bubble menu to show the default view. Does nothing if
+  // the bubble is already open. The bubble stays open until explicitly closed.
+  // Returns bubble bounds in screen coordinates.
+  OpenTrayBubble() => (gfx.mojom.Rect screen_bounds);
+
+  // Closes the system tray bubble menu. Does nothing if the bubble is already
+  // closed.
+  CloseTrayBubble();
+};
+
+// The client for the FirstRunHelper interface, e.g. chrome.
+interface FirstRunHelperClient {
+  // Informs the client that something happened inside ash that should cancel
+  // the tutorial (e.g. the device is shutting down).
+  OnCancelled();
+};

src/ash/public/interfaces/highlighter_controller.mojom

@@ -0,0 +1,29 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Interface for ash client (e.g. Chrome) to connect to the highlighter
+// controller, the component implementing on-screen content selection
+// with a stylus.
+interface HighlighterController {
+  // Sets the client interface.
+  SetClient(HighlighterControllerClient client);
+
+  // Exits the highlighter mode if it is currently enabled.
+  ExitHighlighterMode();
+};
+
+// Interface for ash to notify the client (e.g. Chrome) about the highlighter
+// selection and state.
+interface HighlighterControllerClient {
+  // Called when when a valid selection is made. Selected rectangle is in
+  // screen coordinates, clipped to screen bounds if necessary.
+  HandleSelection(gfx.mojom.Rect rect);
+
+  // Called when the highlighter tool becomes enabled or disabled.
+  HandleEnabledStateChange(bool enabled);
+};

src/ash/public/interfaces/ime_controller.mojom

@@ -0,0 +1,101 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/ime_info.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "ui/base/ime/chromeos/public/interfaces/ime_keyset.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Interface for ash client (e.g. Chrome) to send input method info to ash.
+interface ImeController {
+  // Sets the client interface.
+  SetClient(ImeControllerClient client);
+
+  // Updates the cached IME information and refreshes the IME menus.
+  // |current_ime_id| is empty when there is no active IME yet.
+  RefreshIme(string current_ime_id,
+             array<ImeInfo> available_imes,
+             array<ImeMenuItem> menu_items);
+
+  // Shows an icon in the IME menu indicating that IMEs are controlled by device
+  // policy.
+  SetImesManagedByPolicy(bool managed);
+
+  // Shows the IME menu on the shelf instead of inside the system tray menu.
+  // Users with multiple IMEs that have multiple configurable properties (e.g.
+  // some Chinese IMEs) prefer this to keeping the IME menu under the primary
+  // system tray menu.
+  ShowImeMenuOnShelf(bool show);
+
+  // Report caps lock state changes from chrome (which is the source of truth)
+  // to the tray.
+  UpdateCapsLockState(bool enabled);
+
+  // Report keyboard layout changes from chrome (which is the source of truth)
+  // This is also called when a connection is first established between
+  // ImeController and ImeControllerClient.
+  // The layout name is a XKB keyboard layout name (e.g. "us").
+  OnKeyboardLayoutNameChanged(string layout_name);
+
+  // Report the enabled state of the various extra input options (currently
+  // emoji, handwriting, and voice input). |is_extra_input_options_enabled| set
+  // to false will disable all extra input option UI regardless of the enabled
+  // state of the individual options (which will be ingored).
+  SetExtraInputOptionsEnabledState(bool is_extra_input_options_enabled,
+                                   bool is_emoji_enabled,
+                                   bool is_handwriting_enabled,
+                                   bool is_voice_enabled);
+
+  // Show the mode indicator view (e.g. a bubble with "DV" for Dvorak).
+  // The view fades out after a delay and close itself.
+  // The anchor bounds is in the universal screen coordinates in DIP.
+  ShowModeIndicator(gfx.mojom.Rect anchor_bounds,
+                    mojo_base.mojom.String16 ime_short_name);
+};
+
+// Interface for ash to send input method requests to its client (e.g. Chrome).
+interface ImeControllerClient {
+  // Switches to the next input method. Does nothing if only one input method
+  // is installed.
+  SwitchToNextIme();
+
+  // Switches to the last used input method. Does nothing if only one input
+  // method is installed.
+  SwitchToLastUsedIme();
+
+  // Switches to an input method by |id|. Does nothing if the input method is
+  // not installed. The ID is usually the output of a call like
+  // chromeos::extension_ime_util::GetInputMethodIDByEngineID("xkb:jp::jpn"),
+  // see that function for details. Shows a bubble with the input method short
+  // name when |show_message| is true.
+  SwitchImeById(string id, bool show_message);
+
+  // Activates an input method menu item. The |key| must be a value from the
+  // ImeMenuItems provided via RefreshIme. Does nothing if the |key| is invalid.
+  ActivateImeMenuItem(string key);
+
+  // When the caps lock state change originates from the tray (i.e. clicking the
+  // caps lock toggle from the settings menu from the caps lock icon), from an
+  // accelerator (e.g. pressing Alt + Search), or from the debug UI (i.e.
+  // toggling the caps lock button), propagate the change to the client without
+  // sending a change notification back.
+  // TODO(crbug/759435): Ideally this interaction should only be to disable the
+  // caps lock.
+  SetCapsLockEnabled(bool enabled);
+
+  // Notifies the mirroring state change to the client where IME lives (e.g.
+  // Chrome), so that the IME can behave according to the state.
+  UpdateMirroringState(bool enabled);
+
+  // Notifies the casting state change to the client where IME lives (e.g.
+  // Chrome), so that the IME can behave according to the state.
+  UpdateCastingState(bool enabled);
+
+  // Overrides the keyboard keyset (emoji, handwriting or voice). If keyset is
+  // 'kNone', we switch to the default keyset. Because this is asynchronous,
+  // any code that needs the keyset to be updated first must use the callback.
+  OverrideKeyboardKeyset(chromeos.input_method.mojom.ImeKeyset keyset) => ();
+};

src/ash/public/interfaces/ime_info.mojom

@@ -0,0 +1,40 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "mojo/public/mojom/base/string16.mojom";
+
+// Metadata about an installed input method.
+struct ImeInfo {
+  // True if the IME is a third-party extension.
+  bool third_party;
+
+  // ID that identifies the IME (e.g., "t:latn-post", "pinyin", "hangul").
+  string id;
+
+  // Long name of the IME, which is used as the user-visible name.
+  mojo_base.mojom.String16 name;
+
+  // Medium name of the IME, which is the same as the short name in most cases.
+  mojo_base.mojom.String16 medium_name;
+
+  // UI indicator for the IME (e.g., "US"). If the IME has no indicator, uses
+  // the first two characters in its preferred keyboard layout or language code
+  // (e.g., "ko", "ja", "en-US").
+  mojo_base.mojom.String16 short_name;
+};
+
+// A menu item that sets an IME configuration property.
+struct ImeMenuItem {
+  // True if the item is selected / enabled.
+  bool checked;
+
+  // The key which identifies the property controlled by the menu item, e.g.
+  // "InputMode.HalfWidthKatakana".
+  string key;
+
+  // The item label, e.g. "Switch to full punctuation mode" or "Hiragana".
+  mojo_base.mojom.String16 label;
+};

src/ash/public/interfaces/keyboard_controller.mojom

@@ -0,0 +1,122 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+import "ui/keyboard/public/keyboard_config.mojom";
+import "ui/keyboard/public/keyboard_controller_types.mojom";
+import "mojo/public/mojom/base/unguessable_token.mojom";
+
+enum HideReason {
+  // Hide requested by an explicit user action.
+  kUser,
+
+  // Hide requested due to a system event (e.g. because it would interfere with
+  // a menu or other on screen UI).
+  kSystem,
+};
+
+interface KeyboardControllerObserver {
+  // Called when a keyboard enable flag changes.
+  OnKeyboardEnableFlagsChanged(array<keyboard.mojom.KeyboardEnableFlag> flags);
+
+  // Called when the keyboard is enabled or disabled. If ReloadKeyboard() is
+  // called or other code enables the keyboard while already enabled, this will
+  // be called twice, once when the keyboard is disabled and again when it is
+  // re-enabled.
+  OnKeyboardEnabledChanged(bool is_enabled);
+
+  // Called when the virtual keyboard configuration changes.
+  OnKeyboardConfigChanged(keyboard.mojom.KeyboardConfig config);
+
+  // Called when the visibility of the virtual keyboard changes, e.g. an input
+  // field is focused or blurred, or the user hides the keyboard.
+  OnKeyboardVisibilityChanged(bool visible);
+
+  // Called when the keyboard bounds change. |screen_bounds| is in screen
+  // coordinates.
+  OnKeyboardVisibleBoundsChanged(gfx.mojom.Rect screen_bounds);
+
+  // Called when the keyboard occluded bounds change. |screen_bounds| is in
+  // screen coordinates.
+  OnKeyboardOccludedBoundsChanged(gfx.mojom.Rect screen_bounds);
+
+  // Signals a request to load the keyboard contents. If the contents are
+  // already loaded, requests a reload. Once the contents have loaded,
+  // KeyboardController.KeyboardContentsLoaded is expected to be called by the
+  // client implementation.
+  OnLoadKeyboardContentsRequested();
+
+  // Called when the UI has been destroyed so that the client can reset the
+  // embedded contents and handle.
+  OnKeyboardUIDestroyed();
+};
+
+interface KeyboardController {
+  // Informs the controller that the keyboard contents have loaded. Provides a
+  // token for embedding the client window and the size of the contents.
+  KeyboardContentsLoaded(mojo_base.mojom.UnguessableToken token,
+                         gfx.mojom.Size size);
+
+  // Retrieves the current keyboard configuration.
+  GetKeyboardConfig() => (keyboard.mojom.KeyboardConfig config);
+
+  // Sets the current keyboard configuration.
+  SetKeyboardConfig(keyboard.mojom.KeyboardConfig config);
+
+  // Returns whether the virtual keyboard has been enabled.
+  IsKeyboardEnabled() => (bool enabled);
+
+  // Sets the provided keyboard enable flag. If the computed enabled state
+  // changes, enables or disables the keyboard to match the new state.
+  SetEnableFlag(keyboard.mojom.KeyboardEnableFlag flag);
+
+  // Clears the provided keyboard enable flag. If the computed enabled state
+  // changes, enables or disables the keyboard to match the new state.
+  ClearEnableFlag(keyboard.mojom.KeyboardEnableFlag flag);
+
+  // Gets the current set of keyboard enable flags.
+  GetEnableFlags() => (array<keyboard.mojom.KeyboardEnableFlag> flags);
+
+  // Reloads the virtual keyboard if it is enabled and the URL has changed, e.g.
+  // the focus has switched from one type of field to another.
+  ReloadKeyboardIfNeeded();
+
+  // Rebuilds (disables and re-enables) the virtual keyboard if it is enabled.
+  // This is used to force a reload of the virtual keyboard when preferences or
+  // other configuration that affects loading the keyboard may have changed.
+  RebuildKeyboardIfEnabled();
+
+  // Returns whether the virtual keyboard is visible.
+  IsKeyboardVisible() => (bool visible);
+
+  // Shows the virtual keyboard on the current display if it is enabled.
+  ShowKeyboard();
+
+  // Hides the virtual keyboard if it is visible.
+  HideKeyboard(HideReason reason);
+
+  // Sets the keyboard container type. If non empty, |target_bounds| provides
+  // the container size. Returns whether the transition succeeded once the
+  // container type changes (or fails to change).
+  SetContainerType(keyboard.mojom.ContainerType container_type,
+                   gfx.mojom.Rect? target_bounds) => (bool result);
+
+  // If |locked| is true, the keyboard remains visible even when no window has
+  // input focus.
+  SetKeyboardLocked(bool locked);
+
+  // Sets the regions of the keyboard window that occlude whatever is behind it.
+  SetOccludedBounds(array<gfx.mojom.Rect> bounds);
+
+  // Sets the regions of the keyboard window where events should be handled.
+  SetHitTestBounds(array<gfx.mojom.Rect> bounds);
+
+  // Sets the region of the keyboard window that can be used as a drag handle.
+  SetDraggableArea(gfx.mojom.Rect bounds);
+
+  // Adds a KeyboardControllerObserver.
+  AddObserver(associated KeyboardControllerObserver observer);
+};

src/ash/public/interfaces/kiosk_app_info.mojom

@@ -0,0 +1,24 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+
+union KioskAppIdentifier {
+  // For chrome kiosk apps only, the extension app id.
+  string app_id;
+  // For ARC kiosk apps only, the account id for the app.
+  signin.mojom.AccountId account_id;
+};
+
+// Metadata about a kiosk app. Used for display in the kiosk app menu in the
+// login screen shelf.
+struct KioskAppInfo {
+  KioskAppIdentifier identifier;
+  mojo_base.mojom.String16 name;
+  gfx.mojom.ImageSkia icon;
+};

src/ash/public/interfaces/kiosk_next_shell.mojom

@@ -0,0 +1,21 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+
+// Performs browser-side functionality for Kiosk Next, e.g. launching the
+// KioskNextShell.
+interface KioskNextShellClient {
+  // Launch the Kiosk Next Shell for the user identified by |account_id|.
+  LaunchKioskNextShell(signin.mojom.AccountId account_id);
+};
+
+// Allows Ash and its consumers to interact with Kiosk Next.
+// These requests are forwarded to the KioskNextShellClient when necessary.
+interface KioskNextShellController {
+  // Provides a client for dispatching requests.
+  SetClient(KioskNextShellClient client);
+};

src/ash/public/interfaces/locale.mojom

@@ -0,0 +1,23 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Sent as the response to LocaleUpdateController.OnLocaleChanged().
+enum LocaleNotificationResult {
+  ACCEPT,
+  REVERT
+};
+
+// Used by Chrome to notify locale change events.
+interface LocaleUpdateController {
+  // When this is called in OOBE, it returnes ACCEPT immediately after invoking
+  // observer callbacks. |current|, |from|, and |to| are ignored in this case.
+  // Otherwise it displays a notification in ash prompting the user whether to
+  // accept a change in the locale. If the user clicks the accept button (or
+  // closes the notification), OnLocaleChange() returns ACCEPT. If the user
+  // clicks the revert button, returns REVERT.
+  OnLocaleChanged(string current, string from, string to)
+      => (LocaleNotificationResult result);
+};

src/ash/public/interfaces/login_screen.mojom

@@ -0,0 +1,362 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/user_info.mojom";
+import "ash/public/interfaces/login_user_info.mojom";
+import "ash/public/interfaces/kiosk_app_info.mojom";
+import "chromeos/components/proximity_auth/public/interfaces/auth_type.mojom";
+import "components/account_id/interfaces/account_id.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "mojo/public/mojom/base/time.mojom";
+
+// State of the Oobe UI dialog, which is used to update the visibility of login
+// shelf buttons.
+// This comes from SIGNIN_UI_STATE defined in display_manager.js, with an
+// additional value HIDDEN to indicate the visibility of the oobe ui dialog.
+enum OobeDialogState {
+  // Showing other screen, which does not impact the visibility of login shelf
+  // buttons.
+  NONE = 0,
+
+  // Showing gaia signin screen.
+  GAIA_SIGNIN = 1,
+
+  // 2 is unused to keep in sync with display_manager.js
+
+  // Showing wrong hardware identification screen.
+  WRONG_HWID_WARNING = 3,
+
+  // Showing supervised user creation screen.
+  SUPERVISED_USER_CREATION_FLOW = 4,
+
+  // Showing SAML password confirmation screen.
+  SAML_PASSWORD_CONFIRM = 5,
+
+  // Showing password changed screen.
+  PASSWORD_CHANGED = 6,
+
+  // Showing device enrollment screen.
+  ENROLLMENT = 7,
+
+  // Showing error screen.
+  ERROR = 8,
+
+  // Showing sync consent screen.
+  SYNC_CONSENT = 9,
+
+  // Oobe UI dialog is currently hidden.
+  HIDDEN = 10,
+};
+
+// Allows clients (e.g. the browser process) to send messages to the ash
+// login/lock/user-add screens.
+interface LoginScreen {
+  // Sets the client interface.
+  SetClient(LoginScreenClient client);
+
+  // Displays the lock screen. |did_show| is true iff the lock UI was
+  // successfully displayed.
+  ShowLockScreen() => (bool did_show);
+
+  // Displays the login screen. |did_show| is true iff the login UI was
+  // successfully displayed.
+  ShowLoginScreen() => (bool did_show);
+
+  // Requests to show error message in the ash lock screen.
+  // TODO(xiaoyinh): login_attempts is probably not needed from chrome,
+  // remove it when we start to count the login attempts in ash lock screen.
+  // |login_attempts|: The number of the login authentication attempts.
+  // |error_text|:     The error text to be shown in lock screen.
+  // |help_link_text|: The help link to be shown in lock screen.
+  // |help_topic_id|:  The id of the help app topic regarding this error.
+  ShowErrorMessage(int32 login_attempts,
+                   string error_text,
+                   string help_link_text,
+                   int32 help_topic_id);
+
+  // Shows a warning banner message on the login screen. A warning banner is
+  // used to notify users of important messages before they log in to their
+  // session. (e.g. Tell the user that an update of the user data will start
+  // on login)
+  // |message|: The message to show.
+  ShowWarningBanner(mojo_base.mojom.String16 message);
+
+  // Hide a warning banner if it is displayed.
+  // TODO(fukino): Ideally chrome-side should not have this level of UI
+  // control. Make the API simpler and let ash determine the UI behavior.
+  HideWarningBanner();
+
+  // Requests to close any displayed error messages in ash lock screen.
+  ClearErrors();
+
+  // Requests to show the custom icon in the user pod.
+  // |account_id|:  The account id of the user in the user pod.
+  // |icon|:        Information regarding the icon.
+  ShowUserPodCustomIcon(signin.mojom.AccountId account_id,
+                        EasyUnlockIconOptions icon);
+
+  // Requests to hide the custom icon in the user pod.
+  // |account_id|:  The account id of the user in the user pod.
+  HideUserPodCustomIcon(signin.mojom.AccountId account_id);
+
+  // Requests to set the authentication type.
+  // |account_id|:    The account id of the user in the user pod.
+  // |auth_type|:     Authentication type.
+  // |initial_value|: A message shown in the password field of the user pod.
+  SetAuthType(signin.mojom.AccountId account_id,
+              proximity_auth.mojom.AuthType auth_type,
+              mojo_base.mojom.String16 initial_value);
+
+  // Set the users who are displayed on the login UI. |users| is filtered
+  // and does not correspond to every user on the device.
+  SetUserList(array<LoginUserInfo> users);
+
+  // Notification if pin is enabled or disabled for the given user.
+  // |account_id|:   The account id of the user in the user pod.
+  // |is_enabled|:   True if pin unlock is enabled.
+  SetPinEnabledForUser(signin.mojom.AccountId account_id, bool is_enabled);
+
+  // Update the status of fingerprint for |account_id|.
+  SetFingerprintState(signin.mojom.AccountId account_id,
+                      FingerprintState state);
+
+  // Called after a fingerprint authentication attempt has been made. If
+  // |successful| is true, then the fingerprint authentication attempt was
+  // successful and the device should be unlocked. If false, an error message
+  // should be shown to the user.
+  NotifyFingerprintAuthResult(signin.mojom.AccountId account_id,
+                              bool successful);
+
+  // Change the user's avatar. Some avatars may take a long time to load and the
+  // login screen may already be visible.
+  SetAvatarForUser(signin.mojom.AccountId account_id, UserAvatar avatar);
+
+  // Called when auth should be enabled or disabled for the given user. When
+  // auth is disabled, the user cannot unlock the device. Auth is enabled by
+  // default.
+  // |account_id|:            The account id of the user in the user pod.
+  // |is_enabled|:            True if auth is enabled.
+  // |auth_reenabled_time|:   A future time when auth will be enabled. Must be
+  //                          non-null if |is_enabled| is false. This value is
+  //                          for display purpose only and the client should be
+  //                          responsible for calling this method again with
+  //                          is_enabled == true when the time reaches.
+  SetAuthEnabledForUser(signin.mojom.AccountId account_id,
+                        bool is_enabled,
+                        mojo_base.mojom.Time? auth_reenabled_time);
+
+  // Called when focus is reported to be leaving a lock screen app window.
+  // Requests focus to be handed off to the next suitable widget.
+  // |reverse|:   Whether the tab order is reversed.
+  HandleFocusLeavingLockScreenApps(bool reverse);
+
+  // Called when new system information is available.
+  // |show_if_hidden|: If true, the system information should be displayed to
+  //                   the user if it is currently hidden. If false, the system
+  //                   information should remain hidden if not already shown.
+  //                   Hidden system information can be shown by pressing alt-v.
+  // |os_version_label_text|: The OS version.
+  // |enterprise_info_text|:  The enterprise info.
+  // |bluetooth_name|:        The name of the bluetooth adapter.
+  SetSystemInfo(bool show_if_hidden,
+                string os_version_label_text,
+                string enterprise_info_text,
+                string bluetooth_name);
+
+  // Check if the login/lock screen is ready for a password.
+  IsReadyForPassword() => (bool is_ready);
+
+  // Set the public session display name for user with |account_id|.
+  SetPublicSessionDisplayName(signin.mojom.AccountId account_id,
+                              string display_name);
+
+  // Set the public session locales for user with |account_id|.
+  // |locales|:            Available locales for this user.
+  // |default_locale|:     Default locale for this user.
+  // |show_advanced_view|: True if we should show the advanced expanded user
+  //                       view for the public session.
+  SetPublicSessionLocales(signin.mojom.AccountId account_id,
+                          array<LocaleItem> locales,
+                          string default_locale,
+                          bool show_advanced_view);
+
+  // Set the public session keyboard layouts for user with |account_id|.
+  // |locale|: The locale that |keyboard_layouts| can be used for.
+  SetPublicSessionKeyboardLayouts(signin.mojom.AccountId account_id,
+                                  string locale,
+                                  array<InputMethodItem> keyboard_layouts);
+
+  // Sets whether full management disclosure is needed for the public/managed
+  // session login screen.
+  SetPublicSessionShowFullManagementDisclosure(
+      bool show_full_management_disclosure);
+
+  // Update the kiosk app data for the login screen.
+  SetKioskApps(array<KioskAppInfo> kiosk_apps);
+
+  // Display a toast describing the latest kiosk app launch error.
+  ShowKioskAppError(string message);
+
+  // Called when the dialog hosting oobe has changed state. The oobe dialog
+  // provides support for any part of login that is implemented in JS/HTML, such
+  // as add user or powerwash.
+  NotifyOobeDialogState(OobeDialogState state);
+
+  // Sets whether users can be added from the login screen.
+  SetAddUserButtonEnabled(bool enable);
+
+  // Sets whether shutdown button is enabled in the login screen.
+  SetShutdownButtonEnabled(bool enable);
+
+  // Sets if the guest button on the login shelf can be shown. Even if set to
+  // true the button may still not be visible.
+  SetAllowLoginAsGuest(bool allow_guest);
+
+  // Sets if the guest button on the login shelf can be shown during OOBE.
+  SetShowGuestButtonInOobe(bool show);
+
+  // Sets whether parent access button can be shown on the login shelf.
+  SetShowParentAccessButton(bool show);
+
+  // Sets whether parent access code input dialog is shown on the lock screen.
+  SetShowParentAccessDialog(bool show);
+
+  // Transitions focus to the shelf area. If |reverse|, focuses the status area.
+  FocusLoginShelf(bool reverse);
+};
+
+// Allows ash lock screen to control a client (e.g. Chrome browser). Requests
+// often involve preferences or talk to cryptohome that is not available to ash.
+interface LoginScreenClient {
+  // Attempt to authenticate a user with a password or PIN.
+  //
+  // If auth succeeds:
+  // chrome will hide the lock screen and clear any displayed error messages.
+  // If auth fails:
+  // chrome will request lock screen to show error messages.
+  // |account_id|: The AccountId to authenticate against.
+  // |password|: The submitted password.
+  // |authenticated_by_pin|: True if we are using pin to authenticate.
+  //
+  // The result will be set to true if auth was successful, false if not.
+  //
+  // TODO(jdufault): Extract authenticated_by_pin into a separate mojom method,
+  //                 similar to the other Authenticate* methods
+  AuthenticateUserWithPasswordOrPin(
+      signin.mojom.AccountId account_id,
+      string password,
+      bool authenticated_by_pin) => (bool auth_success);
+
+  // Attempt to authenticate the user with with an external binary.
+  AuthenticateUserWithExternalBinary(signin.mojom.AccountId account_id)
+      => (bool auth_success);
+
+  // Attempt to enroll a user in the external binary authentication system.
+  EnrollUserWithExternalBinary() => (bool enrollment_success);
+
+  // Try to authenticate |account_id| using easy unlock. This can be used on the
+  // login or lock screen.
+  // |account_id|: The account id of the user we are authenticating.
+  //
+  // TODO(jdufault): Refactor this method to return an auth_success, similar to
+  // the other auth methods above.
+  AuthenticateUserWithEasyUnlock(signin.mojom.AccountId account_id);
+
+  // Validates parent access code for the user identified by |account_id|.
+  // Passes validation result in the callback.
+  // Note: This should only be used for child user.
+  ValidateParentAccessCode(
+    signin.mojom.AccountId account_id,
+    string access_code) => (bool access_code_valid);
+
+  // Request to hard lock the user pod.
+  // |account_id|:    The account id of the user in the user pod.
+  HardlockPod(signin.mojom.AccountId account_id);
+
+  // Focus user pod of user with |account_id|.
+  OnFocusPod(signin.mojom.AccountId account_id);
+
+  // Notify that no user pod is focused.
+  OnNoPodFocused();
+
+  // Load wallpaper of user with |account_id|.
+  LoadWallpaper(signin.mojom.AccountId account_id);
+
+  // Sign out current user.
+  SignOutUser();
+
+  // Close add user screen.
+  CancelAddUser();
+
+  // Launches guest mode.
+  LoginAsGuest();
+
+  // User with |account_id| has reached maximum incorrect password attempts.
+  OnMaxIncorrectPasswordAttempted(signin.mojom.AccountId account_id);
+
+  // Should pass the focus to the active lock screen app window, if there is
+  // one. This is called when a lock screen app is reported to be active (using
+  // tray_action mojo interface), and is next in the tab order.
+  // |HandleFocusLeavingLockScreenApps| should be called to return focus to the
+  // lock screen.
+  // |reverse|:   Whether the tab order is reversed.
+  FocusLockScreenApps(bool reverse);
+
+  // Passes focus to the OOBE dialog if it is showing. No-op otherwise.
+  FocusOobeDialog();
+
+  // Show the gaia sign-in dialog. If |can_close| is true, the dialog can be
+  // closed. The value in |prefilled_account| will be used to prefill the
+  // sign-in dialog so the user does not need to type the account email.
+  ShowGaiaSignin(bool can_close, signin.mojom.AccountId? prefilled_account);
+
+  // Notification that the remove user warning was shown.
+  OnRemoveUserWarningShown();
+
+  // Try to remove |account_id|.
+  RemoveUser(signin.mojom.AccountId account_id);
+
+  // Launch a public session for user with |account_id|.
+  // |locale|:       Locale for this user.
+  //                 The value is language code like "en-US", "zh-CN"
+  // |input_method|: Input method for this user.
+  //                 This is the id of InputMethodDescriptor like
+  //                 "t:latn-post", "pinyin".
+  LaunchPublicSession(signin.mojom.AccountId account_id,
+                      string locale,
+                      string input_method);
+
+  // Request public session keyboard layouts for user with |account_id|.
+  // This function send a request to chrome and the result will be returned by
+  // SetPublicSessionKeyboardLayouts.
+  // |locale|: Request a list of keyboard layouts that can be used by this
+  //           locale.
+  RequestPublicSessionKeyboardLayouts(signin.mojom.AccountId account_id,
+                                      string locale);
+
+  // Request to show a feedback report dialog in chrome.
+  ShowFeedback();
+
+  // Launch the specific kiosk app.
+  LaunchKioskApp(string app_id);
+
+  // Launch the specific ARC++ kiosk app.
+  LaunchArcKioskApp(signin.mojom.AccountId account_id);
+
+  // Show the powerwash (device reset) dialog.
+  ShowResetScreen();
+
+  // Show the help app for when users have trouble signing in to their account.
+  ShowAccountAccessHelpApp();
+
+  // Called when the keyboard focus is about to leave from the sytem tray in
+  // the login screen / OOBE. |reverse| is true when the focus moves in the
+  // reversed direction.
+  OnFocusLeavingSystemTray(bool reverse);
+
+  // Used by Ash to signal that user activity occurred on the login screen.
+  OnUserActivity();
+};

src/ash/public/interfaces/login_user_info.mojom

@@ -0,0 +1,161 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/user_info.mojom";
+import "chromeos/components/proximity_auth/public/interfaces/auth_type.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "mojo/public/mojom/base/values.mojom";
+
+// Supported multi-profile user behavior values.
+// Keep in sync with the enum in chromeos_user_pod_row.js and user_pod_row.js
+enum MultiProfileUserBehavior {
+  UNRESTRICTED = 0,
+  PRIMARY_ONLY = 1,
+  NOT_ALLOWED = 2,
+  OWNER_PRIMARY_ONLY = 3,
+};
+
+// Easy unlock icon choices.
+enum EasyUnlockIconId {
+  // No icon shown.
+  NONE,
+  // The user has clicked the easy unlock icon and disabled easy unlock for this
+  // login/lock session.
+  HARDLOCKED,
+  // Phone could not be found.
+  LOCKED,
+  // Phone found, but it is not unlocked.
+  LOCKED_TO_BE_ACTIVATED,
+  // Phone found, but it is too far away.
+  LOCKED_WITH_PROXIMITY_HINT,
+  // Phone found and unlocked. The user can click to dismiss the login/lock
+  // screen.
+  UNLOCKED,
+  // Scanning for phone.
+  SPINNER,
+};
+
+// The status of fingerprint availability.
+enum FingerprintState {
+  // The user cannot use fingerprint. This may be because:
+  //  - they are not the primary user
+  //  - they never registered fingerprint
+  //  - the device does not have a fingerprint sensor
+  UNAVAILABLE,
+  // Fingerprint can be used to unlock the device.
+  AVAILABLE,
+  // There have been too many attempts, so now fingerprint is disabled.
+  DISABLED_FROM_ATTEMPTS,
+  // It has been too long since the device was last used.
+  DISABLED_FROM_TIMEOUT,
+};
+
+// Information about the custom icon in the user pod.
+struct EasyUnlockIconOptions {
+  // Icon that should be displayed.
+  EasyUnlockIconId icon;
+  // Tooltip that is associated with the icon. This is shown automatically if
+  // |autoshow_tooltip| is true. The user can always see the tooltip if they
+  // hover over the icon. The tooltip should be used for the accessibility label
+  // if it is present.
+  mojo_base.mojom.String16 tooltip;
+  // If true, the tooltip should be displayed (even if the user is not currently
+  // hovering over the icon, ie, this makes |tooltip| act like a little like a
+  // notification).
+  bool autoshow_tooltip;
+  // Accessibility label. Only used if |tooltip| is empty.
+  // TODO(jdufault): Always populate and use |aria_label|, even if |tooltip| is
+  // non-empty.
+  mojo_base.mojom.String16 aria_label;
+  // If true, clicking the easy unlock icon should fire a hardlock event which
+  // will disable easy unlock. The hardlock event will request a new icon
+  // display via a separate EasyUnlockIconsOption update. See
+  // login_screen.mojom::HardlockPod.
+  bool hardlock_on_click;
+};
+
+// Infomation of each input method. This is used to populate keyboard layouts
+// for public account user.
+struct InputMethodItem {
+  // An id that identifies an input method engine (e.g., "t:latn-post",
+  // "pinyin", "hangul").
+  string ime_id;
+
+  // Title of the imput method.
+  string title;
+
+  // Whether this input method is been selected.
+  bool selected;
+};
+
+// Information of each available locale. This is used to populate language
+// locales for public account user.
+struct LocaleItem {
+  // Language code of the locale.
+  string language_code;
+
+  // Title of the locale.
+  string title;
+
+  // Optional, group name of the locale.
+  string? group_name;
+};
+
+// Infomation about a public account user.
+struct PublicAccountInfo {
+  // Optional, the domain name displayed in the login screen UI.
+  string? enterprise_domain;
+
+  // A list of available user locales.
+  array<LocaleItem> available_locales;
+
+  // Default locale for this user.
+  string default_locale;
+
+  // Show expanded user view that contains session information/warnings and
+  // locale selection.
+  bool show_expanded_view;
+
+  // Show the advanced expanded user view if there are at least two recommended
+  // locales. This will be the case in multilingual environments where users
+  // are likely to want to choose among locales.
+  bool show_advanced_view;
+
+  // A list of available keyboard layouts.
+  array<InputMethodItem> keyboard_layouts;
+};
+
+// Info about a user in login/lock screen.
+struct LoginUserInfo {
+  // User's basic information including account id, email, avatar etc.
+  UserInfo basic_user_info;
+
+  // What method the user can use to sign in.
+  proximity_auth.mojom.AuthType auth_type;
+
+  // True if this user has already signed in.
+  bool is_signed_in;
+
+  // True if this user is the device owner.
+  bool is_device_owner;
+
+  // The initial fingerprint state. There are other mojom methods (ie,
+  // login_screen.mojom::SetFingerprintState) which update the current state.
+  FingerprintState fingerprint_state;
+
+  // True if multi-profiles sign in is allowed for this user.
+  bool is_multiprofile_allowed;
+
+  // Enforced policy for multi-profiles sign in.
+  MultiProfileUserBehavior multiprofile_policy;
+
+  // True if this user can be removed.
+  bool can_remove;
+
+  // Optional, contains the public account information if user type is
+  // PUBLIC_ACCOUNT.
+  PublicAccountInfo? public_account_info;
+};

src/ash/public/interfaces/media.mojom

@@ -0,0 +1,46 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+
+// Describes whether media is currently being captured.
+enum MediaCaptureState {
+  NONE = 0,
+  AUDIO = 1,
+  VIDEO = 2,
+  AUDIO_VIDEO = 3
+};
+
+// Allows clients (e.g. Chrome browser) to interface with the ash media
+// indicators.
+interface MediaController {
+  // Sets the client interface.
+  SetClient(associated MediaClient client);
+
+  // Called when the media capture state changes on the client, or in response
+  // to a RequestCaptureState() request. Returns a map from AccountId to
+  // MediaCaptureState representing every user's state.
+  NotifyCaptureState(map<signin.mojom.AccountId,
+      MediaCaptureState> capture_states);
+};
+
+// This delegate allows the UI code in ash to forward UI commands.
+interface MediaClient {
+  // Handles the Next Track Media shortcut key.
+  HandleMediaNextTrack();
+
+  // Handles the Play/Pause Toggle Media shortcut key.
+  HandleMediaPlayPause();
+
+  // Handles the Previous Track Media shortcut key.
+  HandleMediaPrevTrack();
+
+  // Requests that the client resends the NotifyMediaCaptureChanged() message.
+  RequestCaptureState();
+
+  // Suspends all WebContents-associated media sessions to stop managed players.
+  SuspendMediaSessions();
+};

src/ash/public/interfaces/menu.mojom

@@ -0,0 +1,74 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "mojo/public/mojom/base/string16.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+
+// The types of menu items shown in shelf context and application list menus.
+// These values roughly match ui::MenuModel::ItemType (sans TYPE_BUTTON_ITEM).
+enum MenuItemType {
+  COMMAND,    // Performs an action when selected.
+  CHECK,      // Can be selected/checked to toggle a boolean state.
+  RADIO,      // Can be selected/checked among a group of choices.
+  SEPARATOR,  // Shows a horizontal line separator.
+  SUBMENU,    // Presents a submenu within another menu.
+  ACTIONABLE_SUBMENU,  // A SUBMENU that is also a COMMAND.
+};
+
+// For a separator we have the following types.
+enum MenuSeparatorType {
+  // Normal - top to bottom: Spacing, line, spacing.
+  NORMAL_SEPARATOR = 0,
+
+  // Double thickness - top to bottom: Spacing, line, spacing.
+  DOUBLE_SEPARATOR,
+
+  // Upper - top to bottom: Line, spacing.
+  UPPER_SEPARATOR,
+
+  // Lower - top to bottom: Spacing, line.
+  LOWER_SEPARATOR,
+
+  // Spacing - top to bottom: Spacing only.
+  SPACING_SEPARATOR,
+
+  // Vertical separator within a row.
+  VERTICAL_SEPARATOR,
+
+  // Separator with left padding - top to bottom: Line only,
+  //                               horizontal: Starts after left padding.
+  PADDED_SEPARATOR,
+};
+
+// MenuItems are used to populate application menus for shelf items.
+// Note: Some menu item types only support a subset of these item features.
+// Please update comments below (MenuItemType -> [fields expected for usage])
+// when anything changed to MenuItemType or MenuItem.
+//
+// COMMAND -> [command_id, label, image, enabled, checked].
+// CHECK   -> [command_id, label, image, enabled, checked].
+// RADIO   -> [command_id, label, image, enabled, checked, radio_group_id].
+// SEPARATOR -> [separator_type].
+// SUBMENU -> [command_id, label, image, enabled, submenu].
+// ACTIONABLE_SUBMENU -> [command_id, label, image, enabled, submenu].
+//
+struct MenuItem {
+  MenuItemType type;                 // The type of the menu item.
+  int32 command_id;                  // The client's arbitrary item command id.
+  mojo_base.mojom.String16 label;    // The string label, may be empty.
+  gfx.mojom.ImageSkia? image;        // The image icon, may be null.
+  array<MenuItem>? submenu;          // The optional nested submenu item list.
+  bool enabled;                      // The enabled state.
+  bool checked;                      // The checked state.
+  int64 radio_group_id;              // The radio group id.
+  MenuSeparatorType separator_type;  // The separator type.
+};
+
+// An interface implemented by clients to handle interaction with menus run in
+// Ash.
+interface MenuDelegate {
+  MenuItemActivated(int32 command_id);
+};

src/ash/public/interfaces/menu.typemap

@@ -0,0 +1,18 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+mojom = "//ash/public/interfaces/menu.mojom"
+public_headers = [
+  "//ui/base/models/menu_model.h",
+  "//ui/base/models/menu_separator_types.h",
+]
+traits_headers = [ "//ash/public/cpp/menu_struct_mojom_traits.h" ]
+public_deps = [
+  "//ui/base",
+  "//ui/gfx/image/mojo:struct_traits",
+]
+type_mappings = [
+  "ash.mojom.MenuItemType=ui::MenuModel::ItemType",
+  "ash.mojom.MenuSeparatorType=ui::MenuSeparatorType",
+]

src/ash/public/interfaces/multi_user_window_manager.mojom

@@ -0,0 +1,45 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+
+// Used to assign windows to user accounts so that ash shows the appropriate set
+// of windows based on the active user.
+interface MultiUserWindowManager {
+  SetClient(associated MultiUserWindowManagerClient client);
+
+  // Associates a window with an account. If |show_for_current_user| is true,
+  // the window is associated with |account_id|, but is shown for the currently
+  // active user.
+  SetWindowOwner(uint64 window_id,
+                 signin.mojom.AccountId account_id,
+                 bool show_for_current_user);
+
+  // Shows a previously registered window for the specified account.
+  ShowWindowForUser(uint64 window_id,
+                    signin.mojom.AccountId account_id);
+};
+
+interface MultiUserWindowManagerClient {
+  // Called when the owner of a window supplied to SetWindowOwner() changes.
+  // |was_minimized| is true if the window was minimized. |teleported| is true
+  // if the window was not on the desktop of the current user.
+  OnWindowOwnerEntryChanged(uint64 window_id,
+                            signin.mojom.AccountId account_id,
+                            bool was_minimized,
+                            bool teleported);
+
+  // Called when the active account changes. This is followed by
+  // OnTransitionUserShelfToNewAccount() and OnDidSwitchActiveAccount().
+  OnWillSwitchActiveAccount(signin.mojom.AccountId account_id);
+
+  // Called at the time when the user's shelf should transition to the account
+  // supplied to OnWillSwitchActiveAccount().
+  OnTransitionUserShelfToNewAccount();
+
+  // Called when the active account change is complete.
+  OnDidSwitchActiveAccount();
+};

src/ash/public/interfaces/new_window.mojom

@@ -0,0 +1,50 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// For GURL.
+import "url/mojom/url.mojom";
+
+// An exported object in ash which lets an ash consumer set a client interface.
+interface NewWindowController {
+  SetClient(associated NewWindowClient client);
+};
+
+// A delegate interface that an ash user sends to ash to handle certain window
+// management responsibilities.
+interface NewWindowClient {
+  // Invoked when the user uses Ctrl+T to open a new tab.
+  NewTab();
+
+  // Opens a new tab with the specified URL. If the |from_user_interaction|
+  // is true then the page will load with a user activation. This means the
+  // page will be able to autoplay media without restriction.
+  NewTabWithUrl(url.mojom.Url url, bool from_user_interaction);
+
+  // Invoked when the user uses Ctrl-N or Ctrl-Shift-N to open a new window.
+  NewWindow(bool incognito);
+
+  // Invoked when an accelerator is used to open the file manager.
+  OpenFileManager();
+
+  // Invoked when the user opens Crosh.
+  OpenCrosh();
+
+  // Invoked when an accelerator is used to open help center.
+  OpenGetHelp();
+
+  // Invoked when the user uses Shift+Ctrl+T to restore the closed tab.
+  RestoreTab();
+
+  // Show the keyboard shortcut viewer.
+  ShowKeyboardShortcutViewer();
+
+  // Shows the task manager window.
+  ShowTaskManager();
+
+  // Opens the feedback page for "Report Issue". If |from_assistant| is
+  // true then the page is triggered from Assistant.
+  OpenFeedbackPage(bool from_assistant);
+};

src/ash/public/interfaces/night_light_controller.mojom

@@ -0,0 +1,52 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Represents a geolocation position fix. It's "simple" because it doesn't
+// expose all the parameters of the position interface as defined by the
+// Geolocation API Specification:
+// (https://dev.w3.org/geo/api/spec-source.html#position_interface).
+// The NightLightController is only interested in valid latitude and longitude.
+// It also doesn't require any specific accuracy. The more accurate the
+// positions, the more accurate sunset and sunrise times calculations. However,
+// an IP-based geoposition is considered good enough.
+struct SimpleGeoposition {
+  double latitude;
+  double longitude;
+};
+
+// Used by a client (e.g. Chrome) to provide the current user's geoposition.
+interface NightLightController {
+  // These values are written to logs. New enum values can be added, but
+  // existing enums must never be renumbered or deleted and reused.
+  enum ScheduleType {
+    // Automatic toggling of NightLight is turned off.
+    kNone = 0,
+
+    // Turned automatically on at the user's local sunset time, and off at the
+    // user's local sunrise time.
+    kSunsetToSunrise = 1,
+
+    // Toggled automatically based on the custom set start and end times
+    // selected by the user from the system settings.
+    kCustom = 2,
+  };
+
+  // Sets the client that will be notified of changes in the Night Light
+  // schedule type.
+  SetClient(NightLightClient client);
+
+  // Provides the NightLightController with the user's geoposition so that it
+  // can calculate the sunset and sunrise times. This should only be called when
+  // the schedule type is set to "Sunset to Sunrise".
+  SetCurrentGeoposition(SimpleGeoposition position);
+};
+
+// Used by ash to notify a client (e.g. Chrome) of the changes in the Night
+// Light schedule type.
+interface NightLightClient {
+  // Notifies the client with the new schedule type whenever it changes.
+  OnScheduleTypeChanged(NightLightController.ScheduleType new_type);
+};

src/ash/public/interfaces/note_taking_controller.mojom

@@ -0,0 +1,19 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+// Interface for ash client (e.g. Chrome) to connect to the note taking
+// controller.
+interface NoteTakingController {
+  // Sets the client interface.
+  SetClient(NoteTakingControllerClient client);
+};
+
+// Interface for ash to notify the client (e.g. Chrome) about the new note
+// creation.
+interface NoteTakingControllerClient {
+  // Called when the controller needs to create a new note.
+  CreateNote();
+};

src/ash/public/interfaces/pref_connector.mojom

@@ -0,0 +1,24 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "components/account_id/interfaces/account_id.mojom";
+import "services/preferences/public/mojom/preferences.mojom";
+
+const string kPrefConnectorServiceName = "ash_pref_connector";
+
+// A connector of PrefStoreConnectors. Provides ash with access to per-profile
+// prefs.
+interface PrefConnector {
+  // Provides a PrefStoreConnector for the signin screen profile prefs. Once
+  // connected the prefs continue to be available even after the user logs in.
+  GetPrefStoreConnectorForSigninScreen(
+      prefs.mojom.PrefStoreConnector& connector);
+
+  // Provides, via |connector|, a PrefStoreConnector for |account_id|. If
+  // |account_id| is invalid or unknown, |connector| will be closed.
+  GetPrefStoreConnectorForUser(signin.mojom.AccountId account_id,
+                               prefs.mojom.PrefStoreConnector& connector);
+};

src/ash/public/interfaces/process_creation_time_recorder.mojom

@@ -0,0 +1,12 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "mojo/public/mojom/base/time.mojom";
+
+interface ProcessCreationTimeRecorder {
+  // Sets the time the main process was created at, used for logging metrics.
+  SetMainProcessCreationTime(mojo_base.mojom.TimeTicks start_time);
+};

src/ash/public/interfaces/session_controller.mojom

@@ -0,0 +1,219 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/user_info.mojom";
+import "components/account_id/interfaces/account_id.mojom";
+import "mojo/public/mojom/base/time.mojom";
+
+// Matches session_manager::SessionState.
+enum SessionState {
+  // Default value, when session state hasn't been initialized yet.
+  UNKNOWN,
+
+  // Running out of box UI.
+  OOBE,
+
+  // Running login UI (primary user) but user sign in hasn't completed yet.
+  LOGIN_PRIMARY,
+
+  // Running login UI (primary or secondary user), user sign in has been
+  // completed but login UI hasn't been hidden yet. This means that either
+  // some session initialization is happening or user has to go through some
+  // UI flow on the same login UI like select avatar, agree to terms of
+  // service etc.
+  LOGGED_IN_NOT_ACTIVE,
+
+  // A user(s) has logged in *and* login UI is hidden i.e. user session is
+  // not blocked.
+  ACTIVE,
+
+  // The session screen is locked.
+  LOCKED,
+
+  // Same as SESSION_STATE_LOGIN_PRIMARY but for multi-profiles sign in i.e.
+  // when there's at least one user already active in the session.
+  LOGIN_SECONDARY,
+};
+
+// Matches ash::CycleUserDirection.
+enum CycleUserDirection {
+  NEXT,  // Cycle to the next user.
+  PREVIOUS,  // Cycle to the previous user.
+};
+
+// Info about a user session in ash. May be sent repeatedly for a single user
+// because individual fields may change (e.g. the avatar image or custodians).
+struct UserSession {
+  // A user session id for the user session. It is generated by session manager
+  // (chrome) when a user session starts and never changes during the lifetime
+  // of the session manager. The number starts at 1 for the first user session
+  // and incremented by one for each subsequent user session.
+  uint32 session_id;
+
+  // Contains general user information state, like the account id, display name,
+  // and avatar.
+  UserInfo user_info;
+
+  // For supervised users only, the email address of the custodian account.
+  // Empty for non-supervised users. Available after profile is loaded.
+  string custodian_email;
+
+  // For supervised users only, the email address of the second custodian
+  // account, if any. Available after profile is loaded.
+  string second_custodian_email;
+
+  // Whether the settings icon should be enabled in the system tray menu.
+  // Usually true after login, but can be false for specialized user sessions
+  // (e.g. adding supervised users).
+  bool should_enable_settings;
+
+  // Similar to |should_show_settings| but for the notification tray.
+  bool should_show_notification_tray;
+};
+
+// Matches ash::AddUserSessionPolicy.
+enum AddUserSessionPolicy {
+  // Adding a user session is allowed.
+  ALLOWED,
+
+  // Disallowed due to primary user's policy.
+  ERROR_NOT_ALLOWED_PRIMARY_USER,
+
+  // Disallowed due to no eligible users.
+  ERROR_NO_ELIGIBLE_USERS,
+
+  // Disallowed due to reaching maximum supported user.
+  ERROR_MAXIMUM_USERS_REACHED,
+};
+
+// Info about an ash session.
+struct SessionInfo {
+  // Whether the screen can be locked.
+  bool can_lock_screen;
+
+  // Whether the screen should be locked automatically before suspending.
+  bool should_lock_screen_automatically;
+
+  // Whether the session is in app mode, which includes a kiosk-like mode for
+  // fullscreen web content or running a single [forced] Chrome or ARC app.
+  bool is_running_in_app_mode;
+
+  // Whether the session is a demo session, which is an ephemeral session for
+  // Demo Mode.
+  bool is_demo_session;
+
+  // Sets whether adding a user session to ash is allowed.
+  AddUserSessionPolicy add_user_session_policy;
+
+  // Current state of the ash session.
+  SessionState state;
+};
+
+// Interface for ash client (e.g. Chrome) to set session info for ash.
+interface SessionController {
+  // Sets the client interface.
+  SetClient(SessionControllerClient client);
+
+  // Sets the ash session info.
+  SetSessionInfo(SessionInfo info);
+
+  // Updates a user session. This is called when a user session is added or
+  // its meta data (e.g. name, avatar) is changed. There is no method to remove
+  // a user session because ash/chrome does not support that. All users are
+  // logged out at the same time.
+  UpdateUserSession(UserSession user_session);
+
+  // Sets the order of user sessions. The order is keyed by the session id.
+  // Currently, session manager set a LRU order with the first one being the
+  // active user session.
+  SetUserSessionOrder(array<uint32> user_session_ids);
+
+  // Prepares ash for lock screen. Currently this ensures the current active
+  // window could not be used to mimic the lock screen. Lock screen is created
+  // after this call returns.
+  PrepareForLock() => ();
+
+  // Runs the pre-lock animation to start locking ash. When the call returns,
+  // |locked| == true means that the ash post-lock animation is finished and ash
+  // is fully locked. Otherwise |locked| is false, which means something is
+  // wrong for the lock and ash is not locked. When the call returns with a true
+  // |locked|, screen locker runs the post lock jobs such as a11y announcement
+  // etc. Invoked by the screen locker during initialization.
+  StartLock() => (bool locked);
+
+  // Notifies ash that chrome lock animations are finished. This is the last
+  // event for locking. SessionController forwards it to PowerEventObserver.
+  NotifyChromeLockAnimationsComplete();
+
+  // Runs the pre-unlock animation. Invoked by the screen locker before
+  // dismissing. When the mojo call returns, screen locker takes that as a
+  // signal of finished unlock animation and dismisses itself.
+  RunUnlockAnimation() => ();
+
+  // Notifies that chrome is terminating.
+  NotifyChromeTerminating();
+
+  // Adds a countdown timer to the system tray menu and creates or updates a
+  // notification saying the session length is limited (e.g. a public session in
+  // a library). Setting |length_limit| to zero removes the notification.
+  // NOTE: Chrome enforces the limit, not ash. Ash could enforce it if local
+  // state prefs and user activity monitoring were available under mustash.
+  // http://crbug.com/729808
+  SetSessionLengthLimit(mojo_base.mojom.TimeDelta length_limit,
+                        mojo_base.mojom.TimeTicks start_time);
+
+  // Returns whether it's ok to switch the active multiprofile user. May affect
+  // or be affected by system state such as window overview mode and screen
+  // casting.
+  CanSwitchActiveUser() => (bool can_switch);
+
+  // Shows a dialog to explain the implications of signing in multiple users.
+  // If |on_accept| is false, |permanently_accept| is ignored.
+  ShowMultiprofilesIntroDialog() => (bool on_accept, bool permanently_accept);
+
+  // Shows a dialog to confirm that the user wants to teleport a window to
+  // another desktop. If |on_accept| is false, |permanently_accept| is ignored.
+  ShowTeleportWarningDialog() => (bool on_accept, bool permanently_accept);
+
+  // Shows a dialog that explains that the given user is no longer allowed in
+  // the session due to a policy change, and aborts the session.
+  ShowMultiprofilesSessionAbortedDialog(string user_email);
+
+  // Adds session activation observer. The observer is called when session
+  // with |account_id| is becoming active or inactive. The observer is
+  // immediately called for upon registration with the current status.
+  AddSessionActivationObserverForAccountId(
+    signin.mojom.AccountId account_id, SessionActivationObserver observer);
+};
+
+// Interface for ash to request session service from its client (e.g. Chrome).
+interface SessionControllerClient {
+  // Requests to lock screen.
+  RequestLockScreen();
+
+  // Requests signing out all users, ending the current session.
+  RequestSignOut();
+
+  // Switch to the active user with |account_id| (if the user has already signed
+  // in).
+  SwitchActiveUser(signin.mojom.AccountId account_id);
+
+  // Switch the active user to the next or previous user.
+  CycleActiveUser(CycleUserDirection direction);
+
+  // Show the multi-profile login UI to add another user to this session.
+  ShowMultiProfileLogin();
+};
+
+// Interface for ash to notify client of sessions status for a specific
+// |account_id|.
+interface SessionActivationObserver {
+  // Called the session is becoming active or inactive.
+  OnSessionActivated(bool activated);
+
+  // Called when lock screen state changes.
+  OnLockStateChanged(bool locked);
+};

src/ash/public/interfaces/session_controller.typemap

@@ -0,0 +1,18 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+mojom = "//ash/public/interfaces/session_controller.mojom"
+public_headers = [
+  "//ash/public/cpp/session_types.h",
+  "//components/session_manager/session_manager_types.h",
+]
+traits_headers = [ "//ash/public/interfaces/session_controller_traits.h" ]
+public_deps = [
+  "//components/session_manager:base",
+]
+type_mappings = [
+  "ash.mojom.AddUserSessionPolicy=ash::AddUserSessionPolicy",
+  "ash.mojom.CycleUserDirection=ash::CycleUserDirection",
+  "ash.mojom.SessionState=session_manager::SessionState",
+]

src/ash/public/interfaces/shelf.mojom

@@ -0,0 +1,147 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module ash.mojom;
+
+import "ash/public/interfaces/menu.mojom";
+import "mojo/public/mojom/base/string16.mojom";
+import "ui/events/mojo/event.mojom";
+import "ui/gfx/image/mojo/image.mojom";
+
+// The actions that may be performed when a shelf item is selected.
+// These values match ash::ShelfAction.
+enum ShelfAction {
+  NONE,              // No action was taken.
+  WINDOW_CREATED,    // A new window was created.
+  WINDOW_ACTIVATED,  // An existing inactive window was activated.
+  WINDOW_MINIMIZED,  // The currently active window was minimized.
+  APP_LIST_SHOWN,    // The app list launcher menu was shown.
+  APP_LIST_DISMISSED,// The app list launcher menu was dismissed.
+};
+
+// Represents the status of items in the shelf.
+// These values match ash::ShelfItemStatus.
+enum ShelfItemStatus {
+  CLOSED,     // A closed shelf item, i.e. has no live instance.
+  RUNNING,    // A shelf item that has live instance.
+  ATTENTION,  // A shelf item that needs user's attention.
+};
+
+// The type of a shelf item.
+// These values match ash::ShelfItemType.
+enum ShelfItemType {
+  PINNED_APP,  // A pinned app, which may be running or not.
+  APP_LIST,    // An item that toggles visiblity of the app list.
+  BROWSER,     // The browser shortcut, the browser may be running or not.
+  APP,         // An unpinned running app window. Supports these app types:
+               // - Extension "V1" (legacy packaged and hosted) apps,
+               // - Extension "V2" (platform) apps,
+               // - ARC (App Runtime for Chrome - Android Play Store) apps.
+  DIALOG,      // An open dialog.
+  BACK_BUTTON, // The back button, which is shown in tablet mode.
+  UNDEFINED,   // Default value.
+};
+
+// Source of the launch or activation request, for tracking.
+// These values match ash::ShelfLaunchSource.
+enum ShelfLaunchSource {
+  UNKNOWN,          // The item was launched from elsewhere.
+  APP_LIST,         // The item was launched from a generic app list view.
+  APP_LIST_SEARCH,  // The item was launched from an app list search view.
+  SHELF,            // The item was launched from the shelf.
+};
+
+// The Shelf controller allows clients (eg. Chrome) to control the ash shelf.
+interface ShelfController {
+  // Observers are immediately notified of the current shelf states when added.
+  AddObserver(associated ShelfObserver observer);
+
+  // Note: ShelfObservers are not notified of ShelfModel changes made by the
+  // ShelfItem functions below. Chrome is the solitary ShelfObserver and client
+  // of these functions, so notifications would be cyclical and problematic.
+
+  // Add |item| at |index|, which is clamped to be greater than 0 (AppList's
+  // index) and not exceeding the item count. Use a negative |index| to append.
+  AddShelfItem(int32 index, ShelfItem item);
+  // Remove the item with |id|. Bails if |id| is unknown or for the AppList.
+  RemoveShelfItem(ShelfID id);
+  // Moves item with |id| to |index|, which is in terms of the model after the
+  // item is removed, and is clamped to be greater than 0 (AppList's index) and
+  // not exceeding the item count. Bails if |id| is unknown or for the AppList.
+  MoveShelfItem(ShelfID id, int32 target_index);
+  // Updates |item| via ShelfID. Bails if the id is unknown or for the AppList.
+  // Clients may pass null images to signal no change and avoid transport costs.
+  UpdateShelfItem(ShelfItem item);
+  // Sets the |delegate| for the item with |id|.
+  SetShelfItemDelegate(ShelfID id, ShelfItemDelegate delegate);
+};
+
+// A Shelf observer, used to persist profile settings and cache a ShelfModel.
+interface ShelfObserver {
+  // Called when the |item| has been added at |index|.
+  // This passes null images to avoid transport costs; clients don't use images.
+  OnShelfItemAdded(int32 index, ShelfItem item);
+  // Called when the item with |id| has been removed.
+  OnShelfItemRemoved(ShelfID id);
+  // Called when the item with |id| has been moved to |index|.
+  OnShelfItemMoved(ShelfID id, int32 index);
+  // Called when the |item| with matching ShelfID has been updated.
+  // This passes null images to avoid transport costs; clients don't use images.
+  OnShelfItemUpdated(ShelfItem item);
+  // Called when |delegate| for the item with |id| has been changed.
+  OnShelfItemDelegateChanged(ShelfID id, ShelfItemDelegate delegate);
+};
+
+// ShelfItemDelegate handles shelf item selection, menu command execution, etc.
+interface ShelfItemDelegate {
+  // Called when the user selects a shelf item. The event, display, and source
+  // info should be provided if known; some implementations use these arguments.
+  // Defaults: (nullptr, kInvalidDisplayId, LAUNCH_FROM_UNKNOWN)
+  // The callback reports the action taken and any app menu items to show.
+  //
+  // NOTE: This codepath is not currently used for context menu triggering.
+  // TODO(crbug.com/691099): Remove |display_id| once panels are removed.
+  ItemSelected(ui.mojom.Event event,
+               int64 display_id,
+               ShelfLaunchSource source) => (ShelfAction action,
+                                             array<MenuItem>? menu_items);
+
+  // Called when spawning a shelf item context menu, returns custom menu items.
+  // TODO(mash): Clients should push context menu items to Ash's shelf model.
+  GetContextMenuItems(int64 display_id) => (array<MenuItem> items);
+
+  // Called on invocation of a shelf item's context or application menu command.
+  // |from_context_menu| is true if the command came from a context menu, or
+  // false if the command came from an application menu. If the |display_id| is
+  // unknown or irrelevant, callers may pass |display::kInvalidDisplayId|.
+  ExecuteCommand(bool from_context_menu,
+                 int64 command_id,
+                 int32 event_flags,
+                 int64 display_id);
+
+  // Closes all windows associated with this shelf item.
+  Close();
+};
+
+// Identifier for shelf items and their windows.
+// This structure matches ash::ShelfID.
+struct ShelfID {
+  string app_id;            // An app id string, used to match app windows.
+                            // (eg. extension ids, arc ids, "AppList", etc.)
+  string launch_id;         // A string used to support multiple items per app.
+                            // (eg. Citrix may use 'Word' or 'Excel' launch ids)
+};
+
+// ShelfItems are used to populate the shelf.
+// This structure matches ash::ShelfItem.
+struct ShelfItem {
+  ShelfItemType type;          // The type of the shelf item.
+  gfx.mojom.ImageSkia? image;  // The icon shown on the shelf; null for updates
+                               // with no icon change, null for ShelfObservers.
+  ShelfItemStatus status;      // The running/closed/etc. status of the item.
+  ShelfID shelf_id;            // The id for the shelf item and its windows.
+  mojo_base.mojom.String16 title;  // The title to display for tooltips, etc.
+  bool pinned_by_policy;       // Whether the item is pinned by policy prefs,
+                               // the user cannot un-pin these items.
+};