| // Copyright 2020 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "android_webview/browser/aw_field_trials.h" |
| |
| #include "base/base_paths_android.h" |
| #include "base/feature_list.h" |
| #include "base/memory/raw_ref.h" |
| #include "base/metrics/persistent_histogram_allocator.h" |
| #include "base/path_service.h" |
| #include "components/history/core/browser/features.h" |
| #include "components/metrics/persistent_histograms.h" |
| #include "components/permissions/features.h" |
| #include "components/safe_browsing/core/common/features.h" |
| #include "components/translate/core/common/translate_util.h" |
| #include "components/viz/common/features.h" |
| #include "content/public/common/content_features.h" |
| #include "gpu/config/gpu_finch_features.h" |
| #include "media/base/media_switches.h" |
| #include "net/base/features.h" |
| #include "services/network/public/cpp/features.h" |
| #include "third_party/blink/public/common/features.h" |
| #include "ui/android/ui_android_features.h" |
| #include "ui/gl/gl_features.h" |
| |
| namespace { |
| |
| class AwFeatureOverrides { |
| public: |
| explicit AwFeatureOverrides(base::FeatureList& feature_list) |
| : feature_list_(feature_list) {} |
| |
| AwFeatureOverrides(const AwFeatureOverrides& other) = delete; |
| AwFeatureOverrides& operator=(const AwFeatureOverrides& other) = delete; |
| |
| ~AwFeatureOverrides() { |
| feature_list_->RegisterExtraFeatureOverrides(std::move(overrides_)); |
| } |
| |
| // Enable a feature with WebView-specific override. |
| void EnableFeature(const base::Feature& feature) { |
| overrides_.emplace_back( |
| std::cref(feature), |
| base::FeatureList::OverrideState::OVERRIDE_ENABLE_FEATURE); |
| } |
| |
| // Disable a feature with WebView-specific override. |
| void DisableFeature(const base::Feature& feature) { |
| overrides_.emplace_back( |
| std::cref(feature), |
| base::FeatureList::OverrideState::OVERRIDE_DISABLE_FEATURE); |
| } |
| |
| private: |
| base::raw_ref<base::FeatureList> feature_list_; |
| std::vector<base::FeatureList::FeatureOverrideInfo> overrides_; |
| }; |
| |
| } // namespace |
| |
| void AwFieldTrials::OnVariationsSetupComplete() { |
| // Persistent histograms must be enabled ASAP, but depends on Features. |
| base::FilePath metrics_dir; |
| if (base::PathService::Get(base::DIR_ANDROID_APP_DATA, &metrics_dir)) { |
| InstantiatePersistentHistogramsWithFeaturesAndCleanup(metrics_dir); |
| } else { |
| NOTREACHED(); |
| } |
| } |
| |
| // TODO(crbug.com/1453407): Consider to migrate all WebView feature overrides |
| // from the AwMainDelegate to the new mechanism here. |
| void AwFieldTrials::RegisterFeatureOverrides(base::FeatureList* feature_list) { |
| if (!feature_list) { |
| return; |
| } |
| AwFeatureOverrides aw_feature_overrides(*feature_list); |
| |
| // Disable third-party storage partitioning on WebView. |
| aw_feature_overrides.DisableFeature( |
| net::features::kThirdPartyStoragePartitioning); |
| |
| // Disable the passthrough on WebView. |
| aw_feature_overrides.DisableFeature( |
| ::features::kDefaultPassthroughCommandDecoder); |
| |
| // HDR does not support webview yet. See crbug.com/1493153 for an explanation. |
| aw_feature_overrides.DisableFeature(ui::kAndroidHDR); |
| |
| // Disable Reducing User Agent minor version on WebView. |
| aw_feature_overrides.DisableFeature( |
| blink::features::kReduceUserAgentMinorVersion); |
| |
| // Disable fenced frames on WebView. |
| aw_feature_overrides.DisableFeature(blink::features::kFencedFrames); |
| |
| // Disable low latency overlay for WebView. There is currently no plan to |
| // enable these optimizations in WebView though they are not fundamentally |
| // impossible. |
| aw_feature_overrides.DisableFeature( |
| blink::features::kLowLatencyCanvas2dImageChromium); |
| aw_feature_overrides.DisableFeature( |
| blink::features::kLowLatencyWebGLImageChromium); |
| |
| // Disable Shared Storage on WebView. |
| aw_feature_overrides.DisableFeature(blink::features::kSharedStorageAPI); |
| |
| // Disable scrollbar-color on WebView. |
| aw_feature_overrides.DisableFeature(blink::features::kScrollbarColor); |
| |
| // Disable scrollbar-width on WebView. |
| aw_feature_overrides.DisableFeature(blink::features::kScrollbarWidth); |
| |
| // Disable Populating the VisitedLinkDatabase on WebView. |
| aw_feature_overrides.DisableFeature(history::kPopulateVisitedLinkDatabase); |
| |
| // WebView uses kWebViewVulkan to control vulkan. Pre-emptively disable |
| // kVulkan in case it becomes enabled by default. |
| aw_feature_overrides.DisableFeature(::features::kVulkan); |
| |
| aw_feature_overrides.DisableFeature(::features::kWebPayments); |
| aw_feature_overrides.DisableFeature(::features::kServiceWorkerPaymentApps); |
| |
| // WebView does not support overlay fullscreen yet for video overlays. |
| aw_feature_overrides.DisableFeature(media::kOverlayFullscreenVideo); |
| |
| // WebView does not support EME persistent license yet, because it's not |
| // clear on how user can remove persistent media licenses from UI. |
| aw_feature_overrides.DisableFeature(media::kMediaDrmPersistentLicense); |
| |
| aw_feature_overrides.DisableFeature(::features::kBackgroundFetch); |
| |
| // SurfaceControl is controlled by kWebViewSurfaceControl flag. |
| aw_feature_overrides.DisableFeature(::features::kAndroidSurfaceControl); |
| |
| // TODO(https://crbug.com/963653): WebOTP is not yet supported on |
| // WebView. |
| aw_feature_overrides.DisableFeature(::features::kWebOTP); |
| |
| // TODO(https://crbug.com/1012899): WebXR is not yet supported on WebView. |
| aw_feature_overrides.DisableFeature(::features::kWebXr); |
| |
| // TODO(https://crbug.com/1312827): Digital Goods API is not yet supported |
| // on WebView. |
| aw_feature_overrides.DisableFeature(::features::kDigitalGoodsApi); |
| |
| aw_feature_overrides.DisableFeature(::features::kDynamicColorGamut); |
| |
| // COOP is not supported on WebView yet. See: |
| // https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/XBKAGb2_7uAi. |
| aw_feature_overrides.DisableFeature( |
| network::features::kCrossOriginOpenerPolicy); |
| |
| aw_feature_overrides.DisableFeature(::features::kInstalledApp); |
| |
| aw_feature_overrides.DisableFeature(::features::kPeriodicBackgroundSync); |
| |
| // Disabled until viz scheduling can be improved. |
| aw_feature_overrides.DisableFeature( |
| ::features::kUseSurfaceLayerForVideoDefault); |
| |
| // Disable dr-dc on webview. |
| aw_feature_overrides.DisableFeature(::features::kEnableDrDc); |
| |
| // TODO(crbug.com/1100993): Web Bluetooth is not yet supported on WebView. |
| aw_feature_overrides.DisableFeature(::features::kWebBluetooth); |
| |
| // TODO(crbug.com/933055): WebUSB is not yet supported on WebView. |
| aw_feature_overrides.DisableFeature(::features::kWebUsb); |
| |
| // Disable TFLite based language detection on webview until webview supports |
| // ML model delivery via Optimization Guide component. |
| // TODO(crbug.com/1292622): Enable the feature on Webview. |
| aw_feature_overrides.DisableFeature( |
| ::translate::kTFLiteLanguageDetectionEnabled); |
| |
| // Disable key pinning enforcement on webview. |
| aw_feature_overrides.DisableFeature( |
| net::features::kStaticKeyPinningEnforcement); |
| |
| // FedCM is not yet supported on WebView. |
| aw_feature_overrides.DisableFeature(::features::kFedCm); |
| |
| // Storage Access permission prompts are not supported on WebView. |
| aw_feature_overrides.DisableFeature( |
| permissions::features::kPermissionStorageAccessAPI); |
| } |