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 #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::enableMediaSource(false);
  27     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
  28     WebRuntimeFeatures::enableEncryptedMedia(false);
  29   }
  30   // WebAudio is enabled by default on ARM and X86 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_getCpuFamily() == ANDROID_CPU_FAMILY_X86)));
  36   // Android does not support the Gamepad API.
  37   WebRuntimeFeatures::enableGamepad(false);
  38   // Android does not have support for PagePopup
  39   WebRuntimeFeatures::enablePagePopup(false);
  40   // Crosswalk supports the Web Notification API on Android.
  41   WebRuntimeFeatures::enableNotifications(true);
  42   // Android does not yet support SharedWorker. crbug.com/154571
  43   WebRuntimeFeatures::enableSharedWorker(false);
  44   // Android does not yet support NavigatorContentUtils.
  45   WebRuntimeFeatures::enableNavigatorContentUtils(false);
  46   WebRuntimeFeatures::enableTouchIconLoading(true);
  47   WebRuntimeFeatures::enableScreenOrientation(true);
  48   WebRuntimeFeatures::enableOrientationEvent(true);
  49 #else
  50   WebRuntimeFeatures::enableNavigatorContentUtils(true);
  51 #endif  // defined(OS_ANDROID)
  52 #if defined(OS_TIZEN)
  53   WebRuntimeFeatures::enableScreenOrientation(true);
  54   WebRuntimeFeatures::enableOrientationEvent(true);
  55 #endif  // defined(OS_TIZEN)
  56 }
  57
  58 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
  59     const CommandLine& command_line) {
  60   if (command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures))
  61     WebRuntimeFeatures::enableExperimentalFeatures(true);
  62
  63   SetRuntimeFeatureDefaultsForPlatform();
  64
  65   if (command_line.HasSwitch(switches::kDisableDatabases))
  66     WebRuntimeFeatures::enableDatabase(false);
  67
  68   if (command_line.HasSwitch(switches::kDisableApplicationCache))
  69     WebRuntimeFeatures::enableApplicationCache(false);
  70
  71   if (command_line.HasSwitch(switches::kDisableDesktopNotifications))
  72     WebRuntimeFeatures::enableNotifications(false);
  73
  74   if (command_line.HasSwitch(switches::kDisableNavigatorContentUtils))
  75     WebRuntimeFeatures::enableNavigatorContentUtils(false);
  76
  77   if (command_line.HasSwitch(switches::kDisableLocalStorage))
  78     WebRuntimeFeatures::enableLocalStorage(false);
  79
  80   if (command_line.HasSwitch(switches::kDisableSessionStorage))
  81     WebRuntimeFeatures::enableSessionStorage(false);
  82
  83   if (command_line.HasSwitch(switches::kDisableMediaSource))
  84     WebRuntimeFeatures::enableMediaSource(false);
  85
  86   if (command_line.HasSwitch(switches::kDisableSharedWorkers))
  87     WebRuntimeFeatures::enableSharedWorker(false);
  88
  89 #if defined(OS_ANDROID)
  90   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
  91     WebRuntimeFeatures::enableMediaStream(false);
  92     WebRuntimeFeatures::enablePeerConnection(false);
  93   }
  94
  95   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
  96     WebRuntimeFeatures::enableScriptedSpeech(false);
  97 #endif
  98
  99   if (command_line.HasSwitch(switches::kEnableServiceWorker))
 100     WebRuntimeFeatures::enableServiceWorker(true);
 101
 102 #if defined(OS_ANDROID)
 103   // WebAudio is enabled by default on ARM and X86, if the MediaCodec
 104   // API is available.
 105   WebRuntimeFeatures::enableWebAudio(
 106       !command_line.HasSwitch(switches::kDisableWebAudio) &&
 107       media::MediaCodecBridge::IsAvailable());
 108 #else
 109   if (command_line.HasSwitch(switches::kDisableWebAudio))
 110     WebRuntimeFeatures::enableWebAudio(false);
 111 #endif
 112
 113   if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
 114     WebRuntimeFeatures::enableEncryptedMedia(true);
 115
 116   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
 117     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 118
 119   if (command_line.HasSwitch(switches::kEnableWebAnimationsSVG))
 120     WebRuntimeFeatures::enableWebAnimationsSVG(true);
 121
 122   if (command_line.HasSwitch(switches::kEnableWebMIDI))
 123     WebRuntimeFeatures::enableWebMIDI(true);
 124
 125   if (command_line.HasSwitch(switches::kDisableFileSystem))
 126     WebRuntimeFeatures::enableFileSystem(false);
 127
 128   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
 129     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 130
 131   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
 132     WebRuntimeFeatures::enableSpeechSynthesis(true);
 133
 134   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
 135     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 136
 137   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
 138     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 139
 140   if (ui::IsOverlayScrollbarEnabled())
 141     WebRuntimeFeatures::enableOverlayScrollbars(true);
 142
 143   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing)
 144       && !command_line.HasSwitch(switches::kDisableFastTextAutosizing))
 145     WebRuntimeFeatures::enableFastTextAutosizing(true);
 146
 147   if (command_line.HasSwitch(switches::kDisableRepaintAfterLayout))
 148     WebRuntimeFeatures::enableRepaintAfterLayout(false);
 149
 150   if (command_line.HasSwitch(switches::kEnableRepaintAfterLayout))
 151     WebRuntimeFeatures::enableRepaintAfterLayout(true);
 152
 153   if (command_line.HasSwitch(switches::kEnableTargetedStyleRecalc))
 154     WebRuntimeFeatures::enableTargetedStyleRecalc(true);
 155
 156   if (command_line.HasSwitch(switches::kEnableBleedingEdgeRenderingFastPaths))
 157     WebRuntimeFeatures::enableBleedingEdgeFastPaths(true);
 158
 159   if (command_line.HasSwitch(switches::kEnablePreciseMemoryInfo))
 160     WebRuntimeFeatures::enablePreciseMemoryInfo(true);
 161 }
 162
 163 }  // namespace content