base: Disable trace event

This allows builds with enable_base_tracing=false.

src/base/process/current_process.cc

@@ -14,77 +14,7 @@ struct ProcessName {
 };
 
 constexpr ProcessName kProcessNames[] = {
-    {CurrentProcessType::PROCESS_UNSPECIFIED, "Null"},
+    {CurrentProcessType{}, ""},
-    {CurrentProcessType::PROCESS_BROWSER, "Browser"},
-    {CurrentProcessType::PROCESS_RENDERER, "Renderer"},
-    {CurrentProcessType::PROCESS_UTILITY, "Utility"},
-    {CurrentProcessType::PROCESS_ZYGOTE, "SandboxHelper"},
-    {CurrentProcessType::PROCESS_GPU, "Gpu"},
-    {CurrentProcessType::PROCESS_PPAPI_PLUGIN, "PpapiPlugin"},
-    {CurrentProcessType::PROCESS_PPAPI_BROKER, "PpapiBroker"},
-    {CurrentProcessType::PROCESS_SERVICE_NETWORK,
-     "Service: network.mojom.NetworkService"},
-    {CurrentProcessType::PROCESS_SERVICE_TRACING,
-     "Service: tracing.mojom.TracingService"},
-    {CurrentProcessType::PROCESS_SERVICE_STORAGE,
-     "Service: storage.mojom.StorageService"},
-    {CurrentProcessType::PROCESS_SERVICE_AUDIO,
-     "Service: audio.mojom.AudioService"},
-    {CurrentProcessType::PROCESS_SERVICE_DATA_DECODER,
-     "Service: data_decoder.mojom.DataDecoderService"},
-    {CurrentProcessType::PROCESS_SERVICE_UTIL_WIN,
-     "Service: chrome.mojom.UtilWin"},
-    {CurrentProcessType::PROCESS_SERVICE_PROXY_RESOLVER,
-     "Service: proxy_resolver.mojom.ProxyResolverFactory"},
-    {CurrentProcessType::PROCESS_SERVICE_CDM,
-     "Service: media.mojom.CdmService"},
-    {CurrentProcessType::PROCESS_SERVICE_VIDEO_CAPTURE,
-     "Service: video_capture.mojom.VideoCaptureService"},
-    {CurrentProcessType::PROCESS_SERVICE_UNZIPPER,
-     "Service: unzip.mojom.Unzipper"},
-    {CurrentProcessType::PROCESS_SERVICE_MIRRORING,
-     "Service: mirroring.mojom.MirroringService"},
-    {CurrentProcessType::PROCESS_SERVICE_FILEPATCHER,
-     "Service: patch.mojom.FilePatcher"},
-    {CurrentProcessType::PROCESS_SERVICE_TTS,
-     "Service: chromeos.tts.mojom.TtsService"},
-    {CurrentProcessType::PROCESS_SERVICE_PRINTING,
-     "Service: printing.mojom.PrintingService"},
-    {CurrentProcessType::PROCESS_SERVICE_QUARANTINE,
-     "Service: quarantine.mojom.Quarantine"},
-    {CurrentProcessType::PROCESS_SERVICE_CROS_LOCALSEARCH,
-     "Service: chromeos.local_search_service.mojom.LocalSearchService"},
-    {CurrentProcessType::PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER,
-     "Service: chromeos.assistant.mojom.AssistantAudioDecoderFactory"},
-    {CurrentProcessType::PROCESS_SERVICE_FILEUTIL,
-     "Service: chrome.mojom.FileUtilService"},
-    {CurrentProcessType::PROCESS_SERVICE_PRINTCOMPOSITOR,
-     "Service: printing.mojom.PrintCompositor"},
-    {CurrentProcessType::PROCESS_SERVICE_PAINTPREVIEW,
-     "Service: paint_preview.mojom.PaintPreviewCompositorCollection"},
-    {CurrentProcessType::PROCESS_SERVICE_SPEECHRECOGNITION,
-     "Service: media.mojom.SpeechRecognitionService"},
-    {CurrentProcessType::PROCESS_SERVICE_XRDEVICE,
-     "Service: device.mojom.XRDeviceService"},
-    {CurrentProcessType::PROCESS_SERVICE_READICON,
-     "Service: chrome.mojom.UtilReadIcon"},
-    {CurrentProcessType::PROCESS_SERVICE_LANGUAGEDETECTION,
-     "Service: language_detection.mojom.LanguageDetectionService"},
-    {CurrentProcessType::PROCESS_SERVICE_SHARING,
-     "Service: sharing.mojom.Sharing"},
-    {CurrentProcessType::PROCESS_SERVICE_MEDIAPARSER,
-     "Service: chrome.mojom.MediaParserFactory"},
-    {CurrentProcessType::PROCESS_SERVICE_QRCODEGENERATOR,
-     "Service: qrcode_generator.mojom.QRCodeGeneratorService"},
-    {CurrentProcessType::PROCESS_SERVICE_PROFILEIMPORT,
-     "Service: chrome.mojom.ProfileImport"},
-    {CurrentProcessType::PROCESS_SERVICE_IME,
-     "Service: chromeos.ime.mojom.ImeService"},
-    {CurrentProcessType::PROCESS_SERVICE_RECORDING,
-     "Service: recording.mojom.RecordingService"},
-    {CurrentProcessType::PROCESS_SERVICE_SHAPEDETECTION,
-     "Service: shape_detection.mojom.ShapeDetectionService"},
-    {CurrentProcessType::PROCESS_RENDERER_EXTENSION, "Extension Renderer"},
 };
 
 }  // namespace

src/base/trace_event/base_tracing_forward.h

@@ -10,7 +10,7 @@
 
 #include "base/tracing_buildflags.h"
 
-#if BUILDFLAG(ENABLE_BASE_TRACING)
+#if 1
 #include "third_party/perfetto/include/perfetto/tracing/traced_value_forward.h"  // nogncheck
 #else
 

src/base/trace_event/memory_allocator_dump.h

@@ -5,6 +5,8 @@
 #ifndef BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_H_
 #define BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_H_
 
+#include "base/trace_event/trace_event_stub.h"
+#if 0
 #include <stdint.h>
 
 #include <iosfwd>
@@ -159,4 +161,5 @@ void BASE_EXPORT PrintTo(const MemoryAllocatorDump::Entry&, std::ostream*);
 }  // namespace trace_event
 }  // namespace base
 
+#endif
 #endif  // BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_H_

src/base/trace_event/memory_dump_manager.h

@@ -5,6 +5,8 @@
 #ifndef BASE_TRACE_EVENT_MEMORY_DUMP_MANAGER_H_
 #define BASE_TRACE_EVENT_MEMORY_DUMP_MANAGER_H_
 
+#include "base/trace_event/trace_event_stub.h"
+#if 0
 #include <stdint.h>
 
 #include <map>
@@ -267,4 +269,5 @@ class BASE_EXPORT MemoryDumpManager {
 }  // namespace trace_event
 }  // namespace base
 
+#endif
 #endif  // BASE_TRACE_EVENT_MEMORY_DUMP_MANAGER_H_

src/base/trace_event/memory_dump_provider.h

@@ -5,6 +5,8 @@
 #ifndef BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_
 #define BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_
 
+#include "base/trace_event/trace_event_stub.h"
+#if 0
 #include "base/base_export.h"
 #include "base/process/process_handle.h"
 #include "base/trace_event/memory_dump_request_args.h"
@@ -48,4 +50,5 @@ class BASE_EXPORT MemoryDumpProvider {
 }  // namespace trace_event
 }  // namespace base
 
+#endif
 #endif  // BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_

src/base/trace_event/process_memory_dump.h

@@ -5,6 +5,8 @@
 #ifndef BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_
 #define BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_
 
+#include "base/trace_event/trace_event_stub.h"
+#if 0
 #include <stddef.h>
 
 #include <map>
@@ -295,4 +297,5 @@ class BASE_EXPORT ProcessMemoryDump {
 }  // namespace trace_event
 }  // namespace base
 
+#endif
 #endif  // BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_

src/base/trace_event/trace_event.h

@@ -5,6 +5,8 @@
 #ifndef BASE_TRACE_EVENT_TRACE_EVENT_H_
 #define BASE_TRACE_EVENT_TRACE_EVENT_H_
 
+#include "base/trace_event/trace_event_stub.h"
+#if 0
 // This header file defines implementation details of how the trace macros in
 // trace_event_common.h collect and store trace events. Anything not
 // implementation-specific should go in trace_event_common.h instead of here.
@@ -793,4 +795,5 @@ class TraceScopedTrackableObject {
 }  // namespace trace_event
 }  // namespace base
 
+#endif
 #endif  // BASE_TRACE_EVENT_TRACE_EVENT_H_

src/base/trace_event/trace_event_stub.cc

@@ -6,6 +6,7 @@
 
 #include <string>
 
+#include "base/trace_event/memory_usage_estimator.h"
 #include "base/trace_event/trace_event_stub.h"
 
 namespace base {
@@ -20,6 +21,9 @@ MemoryDumpProvider::~MemoryDumpProvider() = default;
 // static
 constexpr const char* const MemoryDumpManager::kTraceCategory;
 
+template size_t EstimateMemoryUsage(const std::string&);
+template size_t EstimateMemoryUsage(const std::u16string&);
+
 }  // namespace trace_event
 }  // namespace base
 

src/base/trace_event/trace_event_stub.h

@@ -12,6 +12,8 @@
 #include <string>
 
 #include "base/base_export.h"
+#include "base/check.h"
+#include "base/memory/ref_counted.h"
 #include "base/strings/string_piece.h"
 #include "base/trace_event/common/trace_event_common.h"
 #include "base/trace_event/memory_allocator_dump_guid.h"
@@ -152,6 +154,41 @@ class BASE_EXPORT MemoryDumpProvider {
   MemoryDumpProvider() = default;
 };
 
+class BASE_EXPORT MemoryAllocatorDump {
+ public:
+  static constexpr char* kNameSize = nullptr;
+  static constexpr char* kNameObjectCount = nullptr;
+  static constexpr char* kUnitsBytes = nullptr;
+  static constexpr char* kUnitsObjects = nullptr;
+  static constexpr char* kTypeScalar = nullptr;
+  static constexpr char* kTypeString = nullptr;
+  void AddScalar(const char* name, const char* units, uint64_t value) {}
+  void AddString(const char* name,
+                 const char* units,
+                 const std::string& value) {}
+  const std::string& absolute_name() const { return absolute_name_; }
+  const MemoryAllocatorDumpGuid& guid() const { return guid_; }
+
+ private:
+  const std::string absolute_name_;
+  MemoryAllocatorDumpGuid guid_;
+};
+
+class BASE_EXPORT ProcessMemoryDump {
+ public:
+  MemoryAllocatorDump* CreateAllocatorDump(const std::string& absolute_name) {
+    CHECK(false);
+    return nullptr;
+  }
+  MemoryAllocatorDump* GetAllocatorDump(
+      const std::string& absolute_name) const {
+    CHECK(false);
+    return nullptr;
+  }
+  void AddOwnershipEdge(const MemoryAllocatorDumpGuid& source,
+                        const MemoryAllocatorDumpGuid& target) {}
+};
+
 class BASE_EXPORT MemoryDumpManager {
  public:
   static constexpr const char* const kTraceCategory =
@@ -169,19 +206,19 @@ class TracedArray;
 class TracedDictionary;
 class EventContext;
 
-class StaticString {
+class BASE_EXPORT StaticString {
  public:
   template <typename T>
   StaticString(T) {}
 };
 
-class DynamicString {
+class BASE_EXPORT DynamicString {
  public:
   template <typename T>
   explicit DynamicString(T) {}
 };
 
-class TracedValue {
+class BASE_EXPORT TracedValue {
  public:
   void WriteInt64(int64_t) && {}
   void WriteUInt64(uint64_t) && {}
@@ -196,7 +233,7 @@ class TracedValue {
   TracedArray WriteArray() &&;
 };
 
-class TracedDictionary {
+class BASE_EXPORT TracedDictionary {
  public:
   TracedValue AddItem(StaticString) { return TracedValue(); }
   TracedValue AddItem(DynamicString) { return TracedValue(); }
@@ -212,7 +249,7 @@ class TracedDictionary {
   TracedArray AddArray(DynamicString);
 };
 
-class TracedArray {
+class BASE_EXPORT TracedArray {
  public:
   TracedValue AppendItem() { return TracedValue(); }
 
@@ -224,7 +261,7 @@ class TracedArray {
 };
 
 template <class T>
-void WriteIntoTracedValue(TracedValue, T&&) {}
+BASE_EXPORT void WriteIntoTracedValue(TracedValue, T&&) {}
 
 namespace protos::pbzero {
 namespace SequenceManagerTask {

src/base/trace_event/typed_macros.h

@@ -11,6 +11,7 @@
 
 // Needed not for this file, but for every user of the TRACE_EVENT macros for
 // the lambda definition. So included here for convenience.
+#if 0
 #include "base/tracing/protos/chrome_track_event.pbzero.h"
 #include "third_party/perfetto/include/perfetto/tracing/event_context.h"
 #include "third_party/perfetto/include/perfetto/tracing/string_helpers.h"
@@ -97,4 +98,5 @@
                                    ##__VA_ARGS__)
 
 #endif  // !BUILDFLAG(USE_PERFETTO_CLIENT_LIBRARY)
+#endif
 #endif  // BASE_TRACE_EVENT_TYPED_MACROS_H_

src/net/BUILD.gn

@@ -698,8 +698,6 @@ component("net") {
     "log/net_log_values.h",
     "log/net_log_with_source.cc",
     "log/net_log_with_source.h",
-    "log/trace_net_log_observer.cc",
-    "log/trace_net_log_observer.h",
     "nqe/cached_network_quality.cc",
     "nqe/cached_network_quality.h",
     "nqe/effective_connection_type.cc",