naiveproxy/src/net/base/features.cc
2024-07-27 08:55:30 +08:00

553 lines
20 KiB
C++

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/features.h"
#include <vector>
#include "base/feature_list.h"
#include "build/build_config.h"
#include "net/base/cronet_buildflags.h"
#include "net/net_buildflags.h"
namespace net::features {
BASE_FEATURE(kAlpsForHttp2, "AlpsForHttp2", base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kAvoidH2Reprioritization,
"AvoidH2Reprioritization",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kCapReferrerToOriginOnCrossOrigin,
"CapReferrerToOriginOnCrossOrigin",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kAsyncDns,
"AsyncDns",
#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_ANDROID) || \
BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif
);
BASE_FEATURE(kDnsTransactionDynamicTimeouts,
"DnsTransactionDynamicTimeouts",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<double> kDnsTransactionTimeoutMultiplier{
&kDnsTransactionDynamicTimeouts, "DnsTransactionTimeoutMultiplier", 7.5};
const base::FeatureParam<base::TimeDelta> kDnsMinTransactionTimeout{
&kDnsTransactionDynamicTimeouts, "DnsMinTransactionTimeout",
base::Seconds(12)};
BASE_FEATURE(kUseDnsHttpsSvcb,
"UseDnsHttpsSvcb",
base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<bool> kUseDnsHttpsSvcbEnforceSecureResponse{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbEnforceSecureResponse", false};
const base::FeatureParam<base::TimeDelta> kUseDnsHttpsSvcbInsecureExtraTimeMax{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbInsecureExtraTimeMax",
base::Milliseconds(50)};
const base::FeatureParam<int> kUseDnsHttpsSvcbInsecureExtraTimePercent{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbInsecureExtraTimePercent", 20};
const base::FeatureParam<base::TimeDelta> kUseDnsHttpsSvcbInsecureExtraTimeMin{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbInsecureExtraTimeMin",
base::Milliseconds(5)};
const base::FeatureParam<base::TimeDelta> kUseDnsHttpsSvcbSecureExtraTimeMax{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbSecureExtraTimeMax",
base::Milliseconds(50)};
const base::FeatureParam<int> kUseDnsHttpsSvcbSecureExtraTimePercent{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbSecureExtraTimePercent", 20};
const base::FeatureParam<base::TimeDelta> kUseDnsHttpsSvcbSecureExtraTimeMin{
&kUseDnsHttpsSvcb, "UseDnsHttpsSvcbSecureExtraTimeMin",
base::Milliseconds(5)};
BASE_FEATURE(kUseDnsHttpsSvcbAlpn,
"UseDnsHttpsSvcbAlpn",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kUseHostResolverCache,
"UseHostResolverCache",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kUseServiceEndpointRequest,
"UseServiceEndpointRequest",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<int> kAlternativePortForGloballyReachableCheck{
&kUseAlternativePortForGloballyReachableCheck,
"AlternativePortForGloballyReachableCheck", 443};
BASE_FEATURE(kUseAlternativePortForGloballyReachableCheck,
"UseAlternativePortForGloballyReachableCheck",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableIPv6ReachabilityOverride,
"EnableIPv6ReachabilityOverride",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableTLS13EarlyData,
"EnableTLS13EarlyData",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kNetworkQualityEstimator,
"NetworkQualityEstimator",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSplitCacheByIncludeCredentials,
"SplitCacheByIncludeCredentials",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSplitCacheByNetworkIsolationKey,
"SplitCacheByNetworkIsolationKey",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSplitCodeCacheByNetworkIsolationKey,
"SplitCodeCacheByNetworkIsolationKey",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kPartitionConnectionsByNetworkIsolationKey,
"PartitionConnectionsByNetworkIsolationKey",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableCrossSiteFlagNetworkIsolationKey,
"EnableCrossSiteFlagNetworkIsolationKey",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableFrameSiteSharedOpaqueNetworkIsolationKey,
"EnableFrameSiteSharedOpaqueNetworkIsolationKey",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kHttpCacheKeyingExperimentControlGroup,
"HttpCacheKeyingExperimentControlGroup",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTLS13KeyUpdate,
"TLS13KeyUpdate",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kPostQuantumKyber,
"PostQuantumKyber",
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_IOS)
base::FEATURE_DISABLED_BY_DEFAULT);
#else
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
BASE_FEATURE(kNetUnusedIdleSocketTimeout,
"NetUnusedIdleSocketTimeout",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kShortLaxAllowUnsafeThreshold,
"ShortLaxAllowUnsafeThreshold",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSameSiteDefaultChecksMethodRigorously,
"SameSiteDefaultChecksMethodRigorously",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTurnOffStreamingMediaCachingOnBattery,
"TurnOffStreamingMediaCachingOnBattery",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTurnOffStreamingMediaCachingAlways,
"TurnOffStreamingMediaCachingAlways",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSchemefulSameSite,
"SchemefulSameSite",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kLimitOpenUDPSockets,
"LimitOpenUDPSockets",
base::FEATURE_ENABLED_BY_DEFAULT);
extern const base::FeatureParam<int> kLimitOpenUDPSocketsMax(
&kLimitOpenUDPSockets,
"LimitOpenUDPSocketsMax",
6000);
BASE_FEATURE(kTimeoutTcpConnectAttempt,
"TimeoutTcpConnectAttempt",
base::FEATURE_DISABLED_BY_DEFAULT);
extern const base::FeatureParam<double> kTimeoutTcpConnectAttemptRTTMultiplier(
&kTimeoutTcpConnectAttempt,
"TimeoutTcpConnectAttemptRTTMultiplier",
5.0);
extern const base::FeatureParam<base::TimeDelta> kTimeoutTcpConnectAttemptMin(
&kTimeoutTcpConnectAttempt,
"TimeoutTcpConnectAttemptMin",
base::Seconds(8));
extern const base::FeatureParam<base::TimeDelta> kTimeoutTcpConnectAttemptMax(
&kTimeoutTcpConnectAttempt,
"TimeoutTcpConnectAttemptMax",
base::Seconds(30));
#if BUILDFLAG(ENABLE_REPORTING)
BASE_FEATURE(kDocumentReporting,
"DocumentReporting",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(ENABLE_REPORTING)
BASE_FEATURE(kCookieSameSiteConsidersRedirectChain,
"CookieSameSiteConsidersRedirectChain",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kWaitForFirstPartySetsInit,
"WaitForFirstPartySetsInit",
base::FEATURE_DISABLED_BY_DEFAULT);
// Controls the maximum time duration an outermost frame navigation should be
// deferred by RWS initialization.
extern const base::FeatureParam<base::TimeDelta>
kWaitForFirstPartySetsInitNavigationThrottleTimeout{
&kWaitForFirstPartySetsInit,
"kWaitForFirstPartySetsInitNavigationThrottleTimeout",
base::Seconds(0)};
BASE_FEATURE(kAncestorChainBitEnabledInPartitionedCookies,
"AncestorChainBitEnabledInPartitionedCookies",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kStaticKeyPinningEnforcement,
"StaticKeyPinningEnforcement",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kCookieDomainRejectNonASCII,
"CookieDomainRejectNonASCII",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables partitioning of third party storage (IndexedDB, CacheStorage, etc.)
// by the top level site to reduce fingerprinting.
BASE_FEATURE(kThirdPartyStoragePartitioning,
"ThirdPartyStoragePartitioning",
base::FEATURE_ENABLED_BY_DEFAULT);
// Whether to use the new code paths needed to support partitioning Blob URLs.
// This exists as a kill-switch in case an issue is identified with the Blob
// URL implementation that causes breakage.
BASE_FEATURE(kSupportPartitionedBlobUrl,
"SupportPartitionedBlobUrl",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kTopLevelTpcdOriginTrial,
"TopLevelTpcdOriginTrial",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTpcdTrialSettings,
"TpcdSupportSettings",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kTopLevelTpcdTrialSettings,
"TopLevelTpcdSupportSettings",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTpcdMetadataGrants,
"TpcdMetadataGrants",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kTpcdMetadataStageControl,
"TpcdMetadataStageControl",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kAlpsParsing, "AlpsParsing", base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kAlpsClientHintParsing,
"AlpsClientHintParsing",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kShouldKillSessionOnAcceptChMalformed,
"ShouldKillSessionOnAcceptChMalformed",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kCaseInsensitiveCookiePrefix,
"CaseInsensitiveCookiePrefix",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kEnableWebsocketsOverHttp3,
"EnableWebsocketsOverHttp3",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_WIN)
// Disabled because of https://crbug.com/1489696.
BASE_FEATURE(kEnableGetNetworkConnectivityHintAPI,
"EnableGetNetworkConnectivityHintAPI",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableTcpPortRandomization,
"EnableTcpPortRandomization",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
BASE_FEATURE(kAvoidEntryCreationForNoStore,
"AvoidEntryCreationForNoStore",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<int> kAvoidEntryCreationForNoStoreCacheSize{
&kAvoidEntryCreationForNoStore, "AvoidEntryCreationForNoStoreCacheSize",
1000};
// Prefetch to follow normal semantics instead of 5-minute rule
// https://crbug.com/1345207
BASE_FEATURE(kPrefetchFollowsNormalCacheSemantics,
"PrefetchFollowsNormalCacheSemantics",
base::FEATURE_DISABLED_BY_DEFAULT);
// A flag for new Kerberos feature, that suggests new UI
// when Kerberos authentication in browser fails on ChromeOS.
// b/260522530
#if BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kKerberosInBrowserRedirect,
"KerberosInBrowserRedirect",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// A flag to use asynchronous session creation for new QUIC sessions.
BASE_FEATURE(kAsyncQuicSession,
"AsyncQuicSession",
#if BUILDFLAG(IS_WIN)
base::FEATURE_ENABLED_BY_DEFAULT);
#else
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// A flag to make multiport context creation asynchronous.
BASE_FEATURE(kAsyncMultiPortPath,
"AsyncMultiPortPath",
#if !BUILDFLAG(CRONET_BUILD) && (BUILDFLAG(IS_WIN) || BUILDFLAG(IS_ANDROID))
base::FEATURE_ENABLED_BY_DEFAULT);
#else
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// IP protection experiment configuration settings
BASE_FEATURE(kEnableIpProtectionProxy,
"EnableIpPrivacyProxy",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<std::string> kIpPrivacyTokenServer{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyTokenServer",
/*default_value=*/"https://phosphor-pa.googleapis.com"};
const base::FeatureParam<std::string> kIpPrivacyTokenServerGetInitialDataPath{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyTokenServerGetInitialDataPath",
/*default_value=*/"/v1/ipblinding/getInitialData"};
const base::FeatureParam<std::string> kIpPrivacyTokenServerGetTokensPath{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyTokenServerGetTokensPath",
/*default_value=*/"/v1/ipblinding/auth"};
const base::FeatureParam<std::string> kIpPrivacyTokenServerGetProxyConfigPath{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyTokenServerGetProxyConfigPath",
/*default_value=*/"/v1/ipblinding/getProxyConfig"};
const base::FeatureParam<int> kIpPrivacyAuthTokenCacheBatchSize{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyAuthTokenCacheBatchSize",
/*default_value=*/64};
const base::FeatureParam<int> kIpPrivacyAuthTokenCacheLowWaterMark{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyAuthTokenCacheLowWaterMark",
/*default_value=*/16};
const base::FeatureParam<base::TimeDelta> kIpPrivacyProxyListFetchInterval{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyProxyListFetchInterval",
/*default_value=*/base::Hours(1)};
const base::FeatureParam<base::TimeDelta> kIpPrivacyProxyListMinFetchInterval{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyProxyMinListFetchInterval",
/*default_value=*/base::Minutes(1)};
const base::FeatureParam<bool> kIpPrivacyDirectOnly{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyDirectOnly",
/*default_value=*/false};
const base::FeatureParam<bool> kIpPrivacyIncludeOAuthTokenInGetProxyConfig{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyIncludeOAuthTokenInGetProxyConfig",
/*default_value=*/false};
const base::FeatureParam<std::string> kIpPrivacyProxyAHostnameOverride{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyProxyAHostnameOverride",
/*default_value=*/""};
const base::FeatureParam<std::string> kIpPrivacyProxyBHostnameOverride{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyProxyBHostnameOverride",
/*default_value=*/""};
const base::FeatureParam<bool> kIpPrivacyAddHeaderToProxiedRequests{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyAddHeaderToProxiedRequests",
/*default_value=*/false};
const base::FeatureParam<base::TimeDelta> kIpPrivacyExpirationFuzz{
&kEnableIpProtectionProxy, /*name=*/"IpPrivacyExpirationFuzz",
/*default_value=*/base::Minutes(15)};
const base::FeatureParam<bool> kIpPrivacyRestrictTopLevelSiteSchemes{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyRestrictTopLevelSiteSchemes",
/*default_value=*/true};
const base::FeatureParam<bool> kIpPrivacyUseQuicProxies{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyUseQuicProxies",
/*default_value=*/false};
const base::FeatureParam<bool> kIpPrivacyUseQuicProxiesOnly{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyUseQuicProxiesOnly",
/*default_value=*/false};
const base::FeatureParam<bool> kIpPrivacyUseSingleProxy{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyUseSingleProxy",
/*default_value=*/false};
const base::FeatureParam<std::string> kIpPrivacyAlwaysProxy{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyAlwaysProxy",
/*default_value=*/""};
const base::FeatureParam<bool> kIpPrivacyFallbackToDirect{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyFallbackToDirect",
/*default_value=*/true};
const base::FeatureParam<int> kIpPrivacyDebugExperimentArm{
&kEnableIpProtectionProxy,
/*name=*/"IpPrivacyDebugExperimentArm",
/*default_value=*/0};
// Network-change migration requires NetworkHandle support, which are currently
// only supported on Android (see
// NetworkChangeNotifier::AreNetworkHandlesSupported).
#if BUILDFLAG(IS_ANDROID)
inline constexpr auto kMigrateSessionsOnNetworkChangeV2Default =
base::FEATURE_ENABLED_BY_DEFAULT;
#else // !BUILDFLAG(IS_ANDROID)
inline constexpr auto kMigrateSessionsOnNetworkChangeV2Default =
base::FEATURE_DISABLED_BY_DEFAULT;
#endif // BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kMigrateSessionsOnNetworkChangeV2,
"MigrateSessionsOnNetworkChangeV2",
kMigrateSessionsOnNetworkChangeV2Default);
BASE_FEATURE(kDisableBlackholeOnNoNewNetwork,
"DisableBlackHoleOnNoNewNetwork",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_LINUX)
BASE_FEATURE(kAddressTrackerLinuxIsProxied,
"AddressTrackerLinuxIsProxied",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_LINUX)
// Enables binding of cookies to the port that originally set them by default.
BASE_FEATURE(kEnablePortBoundCookies,
"EnablePortBoundCookies",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables binding of cookies to the scheme that originally set them.
NET_EXPORT BASE_DECLARE_FEATURE(kEnableSchemeBoundCookies);
BASE_FEATURE(kEnableSchemeBoundCookies,
"EnableSchemeBoundCookies",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTimeLimitedInsecureCookies,
"TimeLimitedInsecureCookies",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enable third-party cookie blocking from the command line.
BASE_FEATURE(kForceThirdPartyCookieBlocking,
"ForceThirdPartyCookieBlockingEnabled",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kThirdPartyCookieTopLevelSiteCorsException,
"ThirdPartyCookieTopLevelSiteCorsException",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableEarlyHintsOnHttp11,
"EnableEarlyHintsOnHttp11",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kEnableWebTransportDraft07,
"EnableWebTransportDraft07",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kZstdContentEncoding,
"ZstdContentEncoding",
base::FEATURE_ENABLED_BY_DEFAULT);
// When enabled, partitioned storage will be allowed even if third-party cookies
// are disabled by default. Partitioned storage will not be allowed if
// third-party cookies are disabled due to a specific rule.
BASE_FEATURE(kThirdPartyPartitionedStorageAllowedByDefault,
"ThirdPartyPartitionedStorageAllowedByDefault",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kPriorityHeader,
"PriorityHeader",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kSpdyHeadersToHttpResponseUseBuilder,
"SpdyHeadersToHttpResponseUseBuilder",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kReportEcn, "ReportEcn", base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kUseNewAlpsCodepointHttp2,
"UseNewAlpsCodepointHttp2",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kUseNewAlpsCodepointQUIC,
"UseNewAlpsCodepointQUIC",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kTreatHTTPExpiresHeaderValueZeroAsExpired,
"TreatHTTPExpiresHeaderValueZeroAsExpired",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kTruncateBodyToContentLength,
"TruncateBodyToContentLength",
base::FEATURE_ENABLED_BY_DEFAULT);
#if BUILDFLAG(IS_MAC)
BASE_FEATURE(kReduceIPAddressChangeNotification,
"ReduceIPAddressChangeNotification",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_MAC)
BASE_FEATURE(kDeviceBoundSessions,
"DeviceBoundSessions",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kStoreConnectionSubtype,
"StoreConnectionSubtype",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kPartitionProxyChains,
"PartitionProxyChains",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kStorageAccessHeaders,
"StorageAccessHeaders",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kSpdySessionForProxyAdditionalChecks,
"SpdySessionForProxyAdditionalChecks",
base::FEATURE_ENABLED_BY_DEFAULT);
} // namespace net::features