diff options
Diffstat (limited to 'chromium/third_party/blink/common/features.cc')
| -rw-r--r-- | chromium/third_party/blink/common/features.cc | 134 |
1 files changed, 107 insertions, 27 deletions
diff --git a/chromium/third_party/blink/common/features.cc b/chromium/third_party/blink/common/features.cc index 986267c41cb..322e4e42b1d 100644 --- a/chromium/third_party/blink/common/features.cc +++ b/chromium/third_party/blink/common/features.cc @@ -18,10 +18,15 @@ const base::Feature kBlockingDownloadsInAdFrameWithoutUserActivation{ "BlockingDownloadsInAdFrameWithoutUserActivation", base::FEATURE_ENABLED_BY_DEFAULT}; -// Enable defer commits to avoid flash of unstyled content. +// Enable defer commits to avoid flash of unstyled content, for same origin +// navigation only. const base::Feature kPaintHolding{"PaintHolding", base::FEATURE_ENABLED_BY_DEFAULT}; +// Enable defer commits to avoid flash of unstyled content, for all navigation. +const base::Feature kPaintHoldingCrossOrigin{"PaintHoldingCrossOrigin", + base::FEATURE_DISABLED_BY_DEFAULT}; + // Enable eagerly setting up a CacheStorage interface pointer and // passing it to service workers on startup as an optimization. // TODO(crbug/1077916): Re-enable once the issue with COOP/COEP is fixed. @@ -51,8 +56,8 @@ const base::Feature kFreezeUserAgent{"FreezeUserAgent", // When enabled, use the maximum possible bounds in compositing overlap testing // for fixed position elements. -const base::Feature kMaxOverlapBoundsForFixed{ - "MaxOverlapBoundsForFixed", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::Feature kMaxOverlapBoundsForFixed{"MaxOverlapBoundsForFixed", + base::FEATURE_ENABLED_BY_DEFAULT}; // Enable Display Locking JavaScript APIs. const base::Feature kDisplayLocking{"DisplayLocking", @@ -61,6 +66,9 @@ const base::Feature kDisplayLocking{"DisplayLocking", const base::Feature kJSONModules{"JSONModules", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::Feature kForceSynchronousHTMLParsing{ + "ForceSynchronousHTMLParsing", base::FEATURE_DISABLED_BY_DEFAULT}; + // Enables top-level await in modules. const base::Feature kTopLevelAwait{"TopLevelAwait", base::FEATURE_DISABLED_BY_DEFAULT}; @@ -68,6 +76,13 @@ const base::Feature kTopLevelAwait{"TopLevelAwait", // Enable LayoutNG. const base::Feature kLayoutNG{"LayoutNG", base::FEATURE_ENABLED_BY_DEFAULT}; +// Enable LayoutNGRuby by default. This feature is for a kill switch. +const base::Feature kLayoutNGRuby{"LayoutNGRuby", + base::FEATURE_ENABLED_BY_DEFAULT}; + +const base::Feature kFragmentItem{"FragmentItem", + base::FEATURE_DISABLED_BY_DEFAULT}; + const base::Feature kMixedContentAutoupgrade{"AutoupgradeMixedContent", base::FEATURE_ENABLED_BY_DEFAULT}; @@ -92,17 +107,23 @@ const base::Feature kPlzDedicatedWorker{"PlzDedicatedWorker", base::FEATURE_DISABLED_BY_DEFAULT}; // Enable Portals. https://crbug.com/865123. -const base::Feature kPortals{"Portals", base::FEATURE_DISABLED_BY_DEFAULT}; +// For the current origin trial (https://crbug.com/1040212), this is enabled on +// Android only. +const base::Feature kPortals { + "Portals", +#if defined(OS_ANDROID) + base::FEATURE_ENABLED_BY_DEFAULT +#else + base::FEATURE_DISABLED_BY_DEFAULT +#endif +}; // When kPortals is enabled, allow portals to load content that is third-party // (cross-origin) to the hosting page. Otherwise has no effect. // -// This will be disabled by default by the time Portals is generally available, -// either in origin trial or shipped. -// // https://crbug.com/1013389 const base::Feature kPortalsCrossOrigin{"PortalsCrossOrigin", - base::FEATURE_ENABLED_BY_DEFAULT}; + base::FEATURE_DISABLED_BY_DEFAULT}; // Enable limiting previews loading hints to specific resource types. const base::Feature kPreviewsResourceLoadingHintsSpecificResourceTypes{ @@ -178,6 +199,30 @@ const base::Feature kWebRtcMultiplexCodec{"WebRTC-MultiplexCodec", const base::Feature kWebRtcHideLocalIpsWithMdns{ "WebRtcHideLocalIpsWithMdns", base::FEATURE_ENABLED_BY_DEFAULT}; +// When enabled, wake ups from throttleable TaskQueues are limited to 1 per +// minute in a page that has been backgrounded for 5 minutes. +// +// Intensive wake up throttling is enforced in addition to other throttling +// mechanisms: +// - 1 wake up per second in a background page or hidden cross-origin frame +// - 1% CPU time in a page that has been backgrounded for 10 seconds +// +// Feature tracking bug: https://crbug.com/1075553 +// +// Note that the base::Feature should not be read from; +// rather the provided accessors should be used, which also take into account +// the managed policy override of the feature. +const base::Feature kIntensiveWakeUpThrottling{ + "IntensiveWakeUpThrottling", base::FEATURE_DISABLED_BY_DEFAULT}; + +// When enabled, no throttling is applied to a page when it uses WebRTC. +// +// This allows a page to use a timer to do video processing on frames. An +// event-driven mechanism should be provided to do video processing. When it is +// available, this feature should be removed. https://crbug.com/1101806 +const base::Feature kOptOutWebRTCFromAllThrottling{ + "OptOutWebRTCFromAllThrottling", base::FEATURE_DISABLED_BY_DEFAULT}; + #if BUILDFLAG(RTC_USE_H264) && BUILDFLAG(ENABLE_FFMPEG_VIDEO_DECODERS) // Run-time feature for the |rtc_use_h264| encoder/decoder. const base::Feature kWebRtcH264WithOpenH264FFmpeg{ @@ -235,10 +280,6 @@ const base::Feature kAllowSyncXHRInPageDismissal{ const base::Feature kFontAccess{"FontAccess", base::FEATURE_DISABLED_BY_DEFAULT}; -// Allows Web Components v0 to be re-enabled. -const base::Feature kWebComponentsV0Enabled{"WebComponentsV0Enabled", - base::FEATURE_DISABLED_BY_DEFAULT}; - // Prefetch request properties are updated to be privacy-preserving. See // crbug.com/988956. const base::Feature kPrefetchPrivacyChanges{"PrefetchPrivacyChanges", @@ -256,7 +297,7 @@ const base::Feature kDecodeJpeg420ImagesToYUV{ // Decodes lossy WebP images to YUV instead of RGBX and stores in this format // in the image decode cache. See crbug.com/900264 for details on the feature. const base::Feature kDecodeLossyWebPImagesToYUV{ - "DecodeLossyWebPImagesToYUV", base::FEATURE_DISABLED_BY_DEFAULT}; + "DecodeLossyWebPImagesToYUV", base::FEATURE_ENABLED_BY_DEFAULT}; // Enables cache-aware WebFonts loading. See https://crbug.com/570205. // The feature is disabled on Android for WebView API issue discussed at @@ -279,7 +320,7 @@ const base::Feature kAudioWorkletRealtimeThread{ "AudioWorkletRealtimeThread", base::FEATURE_DISABLED_BY_DEFAULT}; // A feature to reduce the set of resources fetched by No-State Prefetch. -const base::Feature kLightweightNoStatePrefetch{ +const base::Feature kLightweightNoStatePrefetch { "LightweightNoStatePrefetch", #if defined(OS_ANDROID) base::FEATURE_ENABLED_BY_DEFAULT @@ -288,10 +329,6 @@ const base::Feature kLightweightNoStatePrefetch{ #endif }; -// A feature to enable web fonts to be fetched by No-State Prefetch. -const base::Feature kLightweightNoStatePrefetch_FetchFonts{ - "LightweightNoStatePrefetch_FetchFonts", base::FEATURE_DISABLED_BY_DEFAULT}; - // Automatically convert light-themed pages to use a Blink-generated dark theme const base::Feature kForceWebContentsDarkMode{ "WebContentsForceDark", base::FEATURE_DISABLED_BY_DEFAULT}; @@ -413,6 +450,11 @@ const base::Feature kSubresourceRedirect{"SubresourceRedirect", const base::Feature kCompositeCrossOriginIframes{ "CompositeCrossOriginIframes", base::FEATURE_DISABLED_BY_DEFAULT}; +// When enabled, enforces new interoperable semantics for 3D transforms. +// See crbug.com/1008483. +const base::Feature kTransformInterop{"TransformInterop", + base::FEATURE_DISABLED_BY_DEFAULT}; + // When enabled, beacons (and friends) have ResourceLoadPriority::kLow, // not ResourceLoadPriority::kVeryLow. const base::Feature kSetLowPriorityForBeacon{"SetLowPriorityForBeacon", @@ -459,13 +501,11 @@ const base::Feature kLowLatencyWebGLSwapChain{"LowLatencyWebGLSwapChain", const base::Feature kDawn2dCanvas{"Dawn2dCanvas", base::FEATURE_DISABLED_BY_DEFAULT}; -// Enables forcing additional rendering of subframes for the purpose of sticky -// frame tracking. -const base::Feature kForceExtraRenderingToTrackStickyFrame{ - "ForceExtraRenderingToTrackStickyFrame", base::FEATURE_DISABLED_BY_DEFAULT}; - const base::Feature kCSSReducedFontLoadingInvalidations{ - "CSSReducedFontLoadingInvalidations", base::FEATURE_DISABLED_BY_DEFAULT}; + "CSSReducedFontLoadingInvalidations", base::FEATURE_ENABLED_BY_DEFAULT}; +const base::Feature kCSSReducedFontLoadingLayoutInvalidations{ + "CSSReducedFontLoadingLayoutInvalidations", + base::FEATURE_DISABLED_BY_DEFAULT}; // When enabled, frees up CachedMetadata after consumption by script resources // and modules. Needed for the experiment in http://crbug.com/1045052. @@ -478,9 +518,18 @@ const base::Feature kSuppressContentTypeForBeaconMadeWithArrayBufferView{ "SuppressContentTypeForBeaconMadeWithArrayBufferView", base::FEATURE_ENABLED_BY_DEFAULT}; +const base::Feature kBlockFlowHandlesWebkitLineClamp{ + "BlockFlowHandlesWebkitLineClamp", base::FEATURE_ENABLED_BY_DEFAULT}; + const base::Feature kBlockHTMLParserOnStyleSheets{ "BlockHTMLParserOnStyleSheets", base::FEATURE_DISABLED_BY_DEFAULT}; +// Kill switch for the new <link disabled> behavior. +// TODO(crbug.com/1087043): Remove this once the feature has +// landed and no compat issues are reported. +const base::Feature kLinkDisabledNewSpecBehavior{ + "LinkDisabledNewSpecBehavior", base::FEATURE_ENABLED_BY_DEFAULT}; + // Slightly delays rendering if there are fonts being preloaded, so that // they don't miss the first paint if they can be loaded fast enough (e.g., // from the disk cache) @@ -494,10 +543,22 @@ const base::FeatureParam<int> kFontPreloadingDelaysRenderingParam{ &kFontPreloadingDelaysRendering, "delay-in-ms", 100}; const base::Feature kFlexGaps{"FlexGaps", base::FEATURE_DISABLED_BY_DEFAULT}; -const base::Feature kFlexNG{"FlexNG", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::Feature kFlexNG{"FlexNG", base::FEATURE_ENABLED_BY_DEFAULT}; const base::Feature kKeepScriptResourceAlive{"KeepScriptResourceAlive", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::Feature kDelayAsyncScriptExecution{ + "DelayAsyncScriptExecution", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::FeatureParam<DelayAsyncScriptDelayType>::Option + delay_async_script_execution_delay_types[] = { + {DelayAsyncScriptDelayType::kFinishedParsing, "finished_parsing"}, + {DelayAsyncScriptDelayType::kFirstPaintOrFinishedParsing, + "first_paint_or_finished_parsing"}}; +const base::FeatureParam<DelayAsyncScriptDelayType> + kDelayAsyncScriptExecutionDelayParam{ + &kDelayAsyncScriptExecution, "delay_type", + DelayAsyncScriptDelayType::kFinishedParsing, + &delay_async_script_execution_delay_types}; // The AppCache feature is a kill-switch for the entire AppCache feature, // both backend and API. If disabled, then it will turn off the backend and @@ -507,10 +568,10 @@ const base::Feature kAppCache{"AppCache", base::FEATURE_ENABLED_BY_DEFAULT}; // browser will require origin trial tokens in order to load or store manifests // and their contents. const base::Feature kAppCacheRequireOriginTrial{ - "AppCacheRequireOriginTrial", base::FEATURE_DISABLED_BY_DEFAULT}; + "AppCacheRequireOriginTrial", base::FEATURE_ENABLED_BY_DEFAULT}; // Enables the AV1 Image File Format (AVIF). -const base::Feature kAVIF{"AVIF", base::FEATURE_DISABLED_BY_DEFAULT}; +const base::Feature kAVIF{"AVIF", base::FEATURE_ENABLED_BY_DEFAULT}; // Make all pending 'display: auto' web fonts enter the swap or failure period // immediately before reaching the LCP time limit (~2500ms), so that web fonts @@ -543,6 +604,12 @@ const base::Feature kThrottleInstallingServiceWorker{ const base::FeatureParam<int> kInstallingServiceWorkerOutstandingThrottledLimit{ &kThrottleInstallingServiceWorker, "limit", 5}; +const base::Feature kInputPredictorTypeChoice{ + "InputPredictorTypeChoice", base::FEATURE_DISABLED_BY_DEFAULT}; + +const base::Feature kResamplingInputEvents{"ResamplingInputEvents", + base::FEATURE_DISABLED_BY_DEFAULT}; + const base::Feature kResamplingScrollEvents{"ResamplingScrollEvents", base::FEATURE_ENABLED_BY_DEFAULT}; @@ -587,5 +654,18 @@ const char kSkipTouchEventFilterFilteringProcessParamValueBrowser[] = "browser"; const char kSkipTouchEventFilterFilteringProcessParamValueBrowserAndRenderer[] = "browser_and_renderer"; +// Improves support for WebXR on computers with multiple GPUs. +const base::Feature kWebXrMultiGpu{"WebXRMultiGpu", + base::FEATURE_DISABLED_BY_DEFAULT}; + +// Enables dependency support in blink::MatchedPropertiesCache, which allows +// caching of previously uncachable objects. +const base::Feature kCSSMatchedPropertiesCacheDependencies{ + "CSSMatchedPropertiesCacheDependencies", base::FEATURE_DISABLED_BY_DEFAULT}; + +// Whether ParkableStrings can be written out to disk. +const base::Feature kParkableStringsToDisk{"ParkableStringsToDisk", + base::FEATURE_DISABLED_BY_DEFAULT}; + } // namespace features } // namespace blink |