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// Copyright 2013 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.
#include "content/child/runtime_features.h"
#include <vector>
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/metrics/field_trial.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "content/common/content_switches_internal.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
#include "ui/gl/gl_switches.h"
#include "ui/native_theme/native_theme_switches.h"
#if defined(OS_ANDROID)
#include <cpu-features.h>
#include "base/android/build_info.h"
#include "media/base/android/media_codec_util.h"
#endif
using blink::WebRuntimeFeatures;
namespace content {
static void SetRuntimeFeatureDefaultsForPlatform() {
#if defined(OS_ANDROID)
// MSE/EME implementation needs Android MediaCodec API.
if (!media::MediaCodecUtil::IsMediaCodecAvailable()) {
WebRuntimeFeatures::enableMediaSource(false);
WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
WebRuntimeFeatures::enableEncryptedMedia(false);
}
// WebAudio is enabled by default but only when the MediaCodec API
// is available.
AndroidCpuFamily cpu_family = android_getCpuFamily();
WebRuntimeFeatures::enableWebAudio(
media::MediaCodecUtil::IsMediaCodecAvailable() &&
((cpu_family == ANDROID_CPU_FAMILY_ARM) ||
(cpu_family == ANDROID_CPU_FAMILY_ARM64) ||
(cpu_family == ANDROID_CPU_FAMILY_X86) ||
(cpu_family == ANDROID_CPU_FAMILY_MIPS)));
// Android does not have support for PagePopup
WebRuntimeFeatures::enablePagePopup(false);
// Android does not yet support SharedWorker. crbug.com/154571
WebRuntimeFeatures::enableSharedWorker(false);
// Android does not yet support NavigatorContentUtils.
WebRuntimeFeatures::enableNavigatorContentUtils(false);
WebRuntimeFeatures::enableOrientationEvent(true);
WebRuntimeFeatures::enableFastMobileScrolling(true);
WebRuntimeFeatures::enableMediaCapture(true);
// Android won't be able to reliably support non-persistent notifications, the
// intended behavior for which is in flux by itself.
WebRuntimeFeatures::enableNotificationConstructor(false);
WebRuntimeFeatures::enableNewMediaPlaybackUi(true);
// Android does not yet support switching of audio output devices
WebRuntimeFeatures::enableAudioOutputDevices(false);
#else
WebRuntimeFeatures::enableNavigatorContentUtils(true);
#endif // defined(OS_ANDROID)
#if defined(OS_ANDROID) || defined(USE_AURA)
WebRuntimeFeatures::enableCompositedSelectionUpdate(true);
#endif
#if !(defined OS_ANDROID || defined OS_CHROMEOS || defined OS_IOS)
// Only Android, ChromeOS, and IOS support NetInfo right now.
WebRuntimeFeatures::enableNetworkInformation(false);
#endif
}
void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
const base::CommandLine& command_line) {
if (command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures))
WebRuntimeFeatures::enableExperimentalFeatures(true);
if (base::FeatureList::IsEnabled(features::kExperimentalFramework))
WebRuntimeFeatures::enableExperimentalFramework(true);
if (command_line.HasSwitch(switches::kEnableWebBluetooth))
WebRuntimeFeatures::enableWebBluetooth(true);
SetRuntimeFeatureDefaultsForPlatform();
if (command_line.HasSwitch(switches::kDisableDatabases))
WebRuntimeFeatures::enableDatabase(false);
if (command_line.HasSwitch(switches::kDisableMediaSource))
WebRuntimeFeatures::enableMediaSource(false);
if (command_line.HasSwitch(switches::kDisableNotifications)) {
WebRuntimeFeatures::enableNotifications(false);
// Chrome's Push Messaging implementation relies on Web Notifications.
WebRuntimeFeatures::enablePushMessaging(false);
}
if (command_line.HasSwitch(switches::kDisableSharedWorkers))
WebRuntimeFeatures::enableSharedWorker(false);
#if defined(OS_ANDROID)
// WebAudio is enabled by default on ARM and X86, if the MediaCodec
// API is available.
WebRuntimeFeatures::enableWebAudio(
!command_line.HasSwitch(switches::kDisableWebAudio) &&
media::MediaCodecUtil::IsMediaCodecAvailable());
#else
if (command_line.HasSwitch(switches::kDisableWebAudio))
WebRuntimeFeatures::enableWebAudio(false);
#endif
if (command_line.HasSwitch(switches::kDisableSpeechAPI))
WebRuntimeFeatures::enableScriptedSpeech(false);
if (command_line.HasSwitch(switches::kDisableEncryptedMedia))
WebRuntimeFeatures::enableEncryptedMedia(false);
if (command_line.HasSwitch(switches::kEnablePrefixedEncryptedMedia))
WebRuntimeFeatures::enablePrefixedEncryptedMedia(true);
if (command_line.HasSwitch(switches::kDisableFileSystem))
WebRuntimeFeatures::enableFileSystem(false);
if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
if (!command_line.HasSwitch(switches::kDisableAcceleratedJpegDecoding))
WebRuntimeFeatures::enableDecodeToYUV(true);
if (command_line.HasSwitch(switches::kEnableDisplayList2dCanvas))
WebRuntimeFeatures::enableDisplayList2dCanvas(true);
if (command_line.HasSwitch(switches::kDisableDisplayList2dCanvas))
WebRuntimeFeatures::enableDisplayList2dCanvas(false);
if (command_line.HasSwitch(switches::kForceDisplayList2dCanvas))
WebRuntimeFeatures::forceDisplayList2dCanvas(true);
if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
WebRuntimeFeatures::enableWebGLDraftExtensions(true);
if (command_line.HasSwitch(switches::kEnableWebGLImageChromium))
WebRuntimeFeatures::enableWebGLImageChromium(true);
if (command_line.HasSwitch(switches::kForceOverlayFullscreenVideo))
WebRuntimeFeatures::forceOverlayFullscreenVideo(true);
if (ui::IsOverlayScrollbarEnabled())
WebRuntimeFeatures::enableOverlayScrollbars(true);
if (command_line.HasSwitch(switches::kEnablePreciseMemoryInfo))
WebRuntimeFeatures::enablePreciseMemoryInfo(true);
if (command_line.HasSwitch(switches::kEnableNetworkInformation) ||
command_line.HasSwitch(
switches::kEnableExperimentalWebPlatformFeatures)) {
WebRuntimeFeatures::enableNetworkInformation(true);
}
if (command_line.HasSwitch(switches::kEnableCredentialManagerAPI))
WebRuntimeFeatures::enableCredentialManagerAPI(true);
if (command_line.HasSwitch(switches::kReducedReferrerGranularity))
WebRuntimeFeatures::enableReducedReferrerGranularity(true);
if (command_line.HasSwitch(switches::kDisablePermissionsAPI))
WebRuntimeFeatures::enablePermissionsAPI(false);
if (command_line.HasSwitch(switches::kDisableV8IdleTasks))
WebRuntimeFeatures::enableV8IdleTasks(false);
else
WebRuntimeFeatures::enableV8IdleTasks(true);
if (command_line.HasSwitch(switches::kEnableUnsafeES3APIs))
WebRuntimeFeatures::enableUnsafeES3APIs(true);
if (command_line.HasSwitch(switches::kEnableWebVR)) {
WebRuntimeFeatures::enableWebVR(true);
WebRuntimeFeatures::enableFeatureFromString(
std::string("GeometryInterfaces"), true);
}
if (command_line.HasSwitch(switches::kDisablePresentationAPI))
WebRuntimeFeatures::enablePresentationAPI(false);
if (base::FeatureList::IsEnabled(features::kWebFontsIntervention))
WebRuntimeFeatures::enableWebFontsIntervention(true);
if (command_line.HasSwitch(switches::kEnableSlimmingPaintV2))
WebRuntimeFeatures::enableSlimmingPaintV2(true);
// Enable explicitly enabled features, and then disable explicitly disabled
// ones.
if (command_line.HasSwitch(switches::kEnableBlinkFeatures)) {
std::vector<std::string> enabled_features = base::SplitString(
command_line.GetSwitchValueASCII(switches::kEnableBlinkFeatures),
",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
for (const std::string& feature : enabled_features)
WebRuntimeFeatures::enableFeatureFromString(feature, true);
}
if (command_line.HasSwitch(switches::kDisableBlinkFeatures)) {
std::vector<std::string> disabled_features = base::SplitString(
command_line.GetSwitchValueASCII(switches::kDisableBlinkFeatures),
",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
for (const std::string& feature : disabled_features)
WebRuntimeFeatures::enableFeatureFromString(feature, false);
}
}
} // namespace content
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