src/content/child/runtime_features.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/child/runtime_features.h"
   6
   7 #include "base/command_line.h"
   8 #include "content/common/content_switches_internal.h"
   9 #include "content/public/common/content_switches.h"
  10 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
  11
  12 #if defined(OS_ANDROID)
  13 #include <cpu-features.h>
  14 #include "media/base/android/media_codec_bridge.h"
  15 #endif
  16
  17 using blink::WebRuntimeFeatures;
  18
  19 namespace content {
  20
  21 static void SetRuntimeFeatureDefaultsForPlatform() {
  22 #if defined(OS_ANDROID)
  23   // MSE/EME implementation needs Android MediaCodec API.
  24   if (!media::MediaCodecBridge::IsAvailable()) {
  25     WebRuntimeFeatures::enableWebKitMediaSource(false);
  26     WebRuntimeFeatures::enableMediaSource(false);
  27     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
  28   }
  29   // WebAudio is enabled by default only on ARM and only when the
  30   // MediaCodec API is available.
  31   WebRuntimeFeatures::enableWebAudio(
  32       media::MediaCodecBridge::IsAvailable() &&
  33       (android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM));
  34   // Android does not support the Gamepad API.
  35   WebRuntimeFeatures::enableGamepad(false);
  36   // Android does not have support for PagePopup
  37   WebRuntimeFeatures::enablePagePopup(false);
  38   // Crosswalk supports the Web Notification API on Android.
  39   WebRuntimeFeatures::enableNotifications(true);
  40   // Android does not yet support SharedWorker. crbug.com/154571
  41   WebRuntimeFeatures::enableSharedWorker(false);
  42   // Android does not yet support NavigatorContentUtils.
  43   WebRuntimeFeatures::enableNavigatorContentUtils(false);
  44   WebRuntimeFeatures::enableTouchIconLoading(true);
  45   WebRuntimeFeatures::enableOrientationEvent(true);
  46 #else
  47   WebRuntimeFeatures::enableNavigatorContentUtils(true);
  48 #endif  // defined(OS_ANDROID)
  49 }
  50
  51 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
  52     const CommandLine& command_line) {
  53   WebRuntimeFeatures::enableStableFeatures(true);
  54
  55   if (command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures))
  56     WebRuntimeFeatures::enableExperimentalFeatures(true);
  57
  58   SetRuntimeFeatureDefaultsForPlatform();
  59
  60   if (command_line.HasSwitch(switches::kDisableDatabases))
  61     WebRuntimeFeatures::enableDatabase(false);
  62
  63   if (command_line.HasSwitch(switches::kDisableApplicationCache))
  64     WebRuntimeFeatures::enableApplicationCache(false);
  65
  66   if (command_line.HasSwitch(switches::kDisableDesktopNotifications))
  67     WebRuntimeFeatures::enableNotifications(false);
  68
  69   if (command_line.HasSwitch(switches::kDisableNavigatorContentUtils))
  70     WebRuntimeFeatures::enableNavigatorContentUtils(false);
  71
  72   if (command_line.HasSwitch(switches::kDisableLocalStorage))
  73     WebRuntimeFeatures::enableLocalStorage(false);
  74
  75   if (command_line.HasSwitch(switches::kDisableSessionStorage))
  76     WebRuntimeFeatures::enableSessionStorage(false);
  77
  78   if (command_line.HasSwitch(switches::kDisableGeolocation))
  79     WebRuntimeFeatures::enableGeolocation(false);
  80
  81   if (command_line.HasSwitch(switches::kDisableWebKitMediaSource))
  82     WebRuntimeFeatures::enableWebKitMediaSource(false);
  83
  84   if (command_line.HasSwitch(switches::kDisableUnprefixedMediaSource))
  85     WebRuntimeFeatures::enableMediaSource(false);
  86
  87   if (command_line.HasSwitch(switches::kDisableSharedWorkers))
  88     WebRuntimeFeatures::enableSharedWorker(false);
  89
  90 #if defined(OS_ANDROID)
  91   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
  92     WebRuntimeFeatures::enableMediaStream(false);
  93     WebRuntimeFeatures::enablePeerConnection(false);
  94   }
  95
  96   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
  97     WebRuntimeFeatures::enableScriptedSpeech(false);
  98 #endif
  99
 100   if (command_line.HasSwitch(switches::kEnableServiceWorker))
 101     WebRuntimeFeatures::enableServiceWorker(true);
 102
 103 #if defined(OS_ANDROID)
 104   // WebAudio requires the MediaCodec API.
 105 #if defined(ARCH_CPU_X86)
 106   // WebAudio is disabled by default on x86.
 107   WebRuntimeFeatures::enableWebAudio(
 108       command_line.HasSwitch(switches::kEnableWebAudio) &&
 109       media::MediaCodecBridge::IsAvailable());
 110 #elif defined(ARCH_CPU_ARMEL)
 111   // WebAudio is enabled by default on ARM.
 112   WebRuntimeFeatures::enableWebAudio(
 113       !command_line.HasSwitch(switches::kDisableWebAudio) &&
 114       media::MediaCodecBridge::IsAvailable());
 115 #else
 116   WebRuntimeFeatures::enableWebAudio(false);
 117 #endif
 118 #else
 119   if (command_line.HasSwitch(switches::kDisableWebAudio))
 120     WebRuntimeFeatures::enableWebAudio(false);
 121 #endif
 122
 123   if (command_line.HasSwitch(switches::kDisableFullScreen))
 124     WebRuntimeFeatures::enableFullscreen(false);
 125
 126   if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
 127     WebRuntimeFeatures::enableEncryptedMedia(true);
 128
 129   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
 130     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 131
 132   // FIXME: Remove the enable switch once Web Animations CSS is enabled by
 133   // default in Blink.
 134   if (command_line.HasSwitch(switches::kEnableWebAnimationsCSS))
 135     WebRuntimeFeatures::enableWebAnimationsCSS(true);
 136   else if (command_line.HasSwitch(switches::kDisableWebAnimationsCSS))
 137     WebRuntimeFeatures::enableWebAnimationsCSS(false);
 138
 139   if (command_line.HasSwitch(switches::kEnableWebAnimationsSVG))
 140     WebRuntimeFeatures::enableWebAnimationsSVG(true);
 141
 142   if (command_line.HasSwitch(switches::kEnableWebMIDI))
 143     WebRuntimeFeatures::enableWebMIDI(true);
 144
 145   if (command_line.HasSwitch(switches::kDisableDeviceMotion))
 146     WebRuntimeFeatures::enableDeviceMotion(false);
 147
 148   if (command_line.HasSwitch(switches::kDisableDeviceOrientation))
 149     WebRuntimeFeatures::enableDeviceOrientation(false);
 150
 151   if (command_line.HasSwitch(switches::kDisableSpeechInput))
 152     WebRuntimeFeatures::enableSpeechInput(false);
 153
 154   if (command_line.HasSwitch(switches::kDisableFileSystem))
 155     WebRuntimeFeatures::enableFileSystem(false);
 156
 157 #if defined(OS_WIN)
 158   if (command_line.HasSwitch(switches::kEnableDirectWrite))
 159     WebRuntimeFeatures::enableDirectWrite(true);
 160 #endif
 161
 162   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
 163     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 164
 165   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
 166     WebRuntimeFeatures::enableSpeechSynthesis(true);
 167
 168   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
 169     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 170
 171   if (command_line.HasSwitch(switches::kEnableHTMLImports))
 172     WebRuntimeFeatures::enableHTMLImports(true);
 173
 174   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
 175     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 176
 177   if (IsOverlayScrollbarEnabled())
 178     WebRuntimeFeatures::enableOverlayScrollbars(true);
 179
 180   if (command_line.HasSwitch(switches::kEnableInputModeAttribute))
 181     WebRuntimeFeatures::enableInputModeAttribute(true);
 182
 183   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing))
 184     WebRuntimeFeatures::enableFastTextAutosizing(true);
 185
 186   if (command_line.HasSwitch(switches::kEnableRepaintAfterLayout))
 187     WebRuntimeFeatures::enableRepaintAfterLayout(true);
 188 }
 189
 190 }  // namespace content