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 #include "ui/native_theme/native_theme_switches.h"
  12
  13 #if defined(OS_ANDROID)
  14 #include <cpu-features.h>
  15 #include "media/base/android/media_codec_bridge.h"
  16 #endif
  17
  18 using blink::WebRuntimeFeatures;
  19
  20 namespace content {
  21
  22 static void SetRuntimeFeatureDefaultsForPlatform() {
  23 #if defined(OS_ANDROID)
  24   // MSE/EME implementation needs Android MediaCodec API.
  25   if (!media::MediaCodecBridge::IsAvailable()) {
  26     WebRuntimeFeatures::enableWebKitMediaSource(false);
  27     WebRuntimeFeatures::enableMediaSource(false);
  28     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
  29   }
  30   // WebAudio is enabled by default only on ARM and only when the
  31   // MediaCodec API is available.
  32   WebRuntimeFeatures::enableWebAudio(
  33       media::MediaCodecBridge::IsAvailable() &&
  34       (android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM));
  35   // Android does not support the Gamepad API.
  36   WebRuntimeFeatures::enableGamepad(false);
  37   // Android does not have support for PagePopup
  38   WebRuntimeFeatures::enablePagePopup(false);
  39   // Android does not yet support the Web Notification API. crbug.com/115320
  40   WebRuntimeFeatures::enableNotifications(false);
  41   // Android does not yet support SharedWorker. crbug.com/154571
  42   WebRuntimeFeatures::enableSharedWorker(false);
  43   // Android does not yet support NavigatorContentUtils.
  44   WebRuntimeFeatures::enableNavigatorContentUtils(false);
  45   WebRuntimeFeatures::enableTouchIconLoading(true);
  46   WebRuntimeFeatures::enableOrientationEvent(true);
  47 #else
  48   WebRuntimeFeatures::enableNavigatorContentUtils(true);
  49 #endif  // defined(OS_ANDROID)
  50 }
  51
  52 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
  53     const CommandLine& command_line) {
  54   if (command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures))
  55     WebRuntimeFeatures::enableExperimentalFeatures(true);
  56
  57   SetRuntimeFeatureDefaultsForPlatform();
  58
  59   if (command_line.HasSwitch(switches::kDisableDatabases))
  60     WebRuntimeFeatures::enableDatabase(false);
  61
  62   if (command_line.HasSwitch(switches::kDisableApplicationCache))
  63     WebRuntimeFeatures::enableApplicationCache(false);
  64
  65   if (command_line.HasSwitch(switches::kDisableDesktopNotifications))
  66     WebRuntimeFeatures::enableNotifications(false);
  67
  68   if (command_line.HasSwitch(switches::kDisableNavigatorContentUtils))
  69     WebRuntimeFeatures::enableNavigatorContentUtils(false);
  70
  71   if (command_line.HasSwitch(switches::kDisableLocalStorage))
  72     WebRuntimeFeatures::enableLocalStorage(false);
  73
  74   if (command_line.HasSwitch(switches::kDisableSessionStorage))
  75     WebRuntimeFeatures::enableSessionStorage(false);
  76
  77   if (command_line.HasSwitch(switches::kDisableWebKitMediaSource))
  78     WebRuntimeFeatures::enableWebKitMediaSource(false);
  79
  80   if (command_line.HasSwitch(switches::kDisableUnprefixedMediaSource))
  81     WebRuntimeFeatures::enableMediaSource(false);
  82
  83   if (command_line.HasSwitch(switches::kDisableSharedWorkers))
  84     WebRuntimeFeatures::enableSharedWorker(false);
  85
  86 #if defined(OS_ANDROID)
  87   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
  88     WebRuntimeFeatures::enableMediaStream(false);
  89     WebRuntimeFeatures::enablePeerConnection(false);
  90   }
  91
  92   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
  93     WebRuntimeFeatures::enableScriptedSpeech(false);
  94 #endif
  95
  96   if (command_line.HasSwitch(switches::kEnableServiceWorker))
  97     WebRuntimeFeatures::enableServiceWorker(true);
  98
  99 #if defined(OS_ANDROID)
 100   // WebAudio requires the MediaCodec API.
 101 #if defined(ARCH_CPU_X86)
 102   // WebAudio is disabled by default on x86.
 103   WebRuntimeFeatures::enableWebAudio(
 104       command_line.HasSwitch(switches::kEnableWebAudio) &&
 105       media::MediaCodecBridge::IsAvailable());
 106 #elif defined(ARCH_CPU_ARMEL)
 107   // WebAudio is enabled by default on ARM.
 108   WebRuntimeFeatures::enableWebAudio(
 109       !command_line.HasSwitch(switches::kDisableWebAudio) &&
 110       media::MediaCodecBridge::IsAvailable());
 111 #else
 112   WebRuntimeFeatures::enableWebAudio(false);
 113 #endif
 114 #else
 115   if (command_line.HasSwitch(switches::kDisableWebAudio))
 116     WebRuntimeFeatures::enableWebAudio(false);
 117 #endif
 118
 119   if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
 120     WebRuntimeFeatures::enableEncryptedMedia(true);
 121
 122   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
 123     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 124
 125   if (command_line.HasSwitch(switches::kEnableWebAnimationsSVG))
 126     WebRuntimeFeatures::enableWebAnimationsSVG(true);
 127
 128   if (command_line.HasSwitch(switches::kEnableWebMIDI))
 129     WebRuntimeFeatures::enableWebMIDI(true);
 130
 131   if (command_line.HasSwitch(switches::kDisableSpeechInput))
 132     WebRuntimeFeatures::enableSpeechInput(false);
 133
 134   if (command_line.HasSwitch(switches::kDisableFileSystem))
 135     WebRuntimeFeatures::enableFileSystem(false);
 136
 137 #if defined(OS_WIN)
 138   if (command_line.HasSwitch(switches::kEnableDirectWrite))
 139     WebRuntimeFeatures::enableDirectWrite(true);
 140 #endif
 141
 142   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
 143     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 144
 145   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
 146     WebRuntimeFeatures::enableSpeechSynthesis(true);
 147
 148   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
 149     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 150
 151   if (command_line.HasSwitch(switches::kEnableHTMLImports))
 152     WebRuntimeFeatures::enableHTMLImports(true);
 153
 154   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
 155     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 156
 157   if (ui::IsOverlayScrollbarEnabled())
 158     WebRuntimeFeatures::enableOverlayScrollbars(true);
 159
 160   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing))
 161     WebRuntimeFeatures::enableFastTextAutosizing(true);
 162
 163   if (command_line.HasSwitch(switches::kDisableRepaintAfterLayout))
 164     WebRuntimeFeatures::enableRepaintAfterLayout(false);
 165
 166   if (command_line.HasSwitch(switches::kEnableRepaintAfterLayout))
 167     WebRuntimeFeatures::enableRepaintAfterLayout(true);
 168
 169   if (command_line.HasSwitch(switches::kEnableTargetedStyleRecalc))
 170     WebRuntimeFeatures::enableTargetedStyleRecalc(true);
 171
 172   if (command_line.HasSwitch(switches::kEnableBleedingEdgeRenderingFastPaths))
 173     WebRuntimeFeatures::enableBleedingEdgeFastPaths(true);
 174 }
 175
 176 }  // namespace content