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::enableOrientationEvent(true);
  48 #else
  49   WebRuntimeFeatures::enableNavigatorContentUtils(true);
  50 #endif  // defined(OS_ANDROID)
  51 }
  52
  53 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
  54     const CommandLine& command_line) {
  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::kDisableMediaSource))
  79     WebRuntimeFeatures::enableMediaSource(false);
  80
  81   if (command_line.HasSwitch(switches::kDisableSharedWorkers))
  82     WebRuntimeFeatures::enableSharedWorker(false);
  83
  84 #if defined(OS_ANDROID)
  85   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
  86     WebRuntimeFeatures::enableMediaStream(false);
  87     WebRuntimeFeatures::enablePeerConnection(false);
  88   }
  89
  90   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
  91     WebRuntimeFeatures::enableScriptedSpeech(false);
  92 #endif
  93
  94   if (command_line.HasSwitch(switches::kEnableServiceWorker))
  95     WebRuntimeFeatures::enableServiceWorker(true);
  96
  97 #if defined(OS_ANDROID)
  98   // WebAudio is enabled by default on ARM and X86, if the MediaCodec
  99   // API is available.
 100   WebRuntimeFeatures::enableWebAudio(
 101       !command_line.HasSwitch(switches::kDisableWebAudio) &&
 102       media::MediaCodecBridge::IsAvailable());
 103 #else
 104   if (command_line.HasSwitch(switches::kDisableWebAudio))
 105     WebRuntimeFeatures::enableWebAudio(false);
 106 #endif
 107
 108   if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
 109     WebRuntimeFeatures::enableEncryptedMedia(true);
 110
 111   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
 112     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 113
 114   if (command_line.HasSwitch(switches::kEnableWebAnimationsSVG))
 115     WebRuntimeFeatures::enableWebAnimationsSVG(true);
 116
 117   if (command_line.HasSwitch(switches::kEnableWebMIDI))
 118     WebRuntimeFeatures::enableWebMIDI(true);
 119
 120   if (command_line.HasSwitch(switches::kDisableFileSystem))
 121     WebRuntimeFeatures::enableFileSystem(false);
 122
 123   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
 124     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 125
 126   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
 127     WebRuntimeFeatures::enableSpeechSynthesis(true);
 128
 129   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
 130     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 131
 132   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
 133     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 134
 135   if (ui::IsOverlayScrollbarEnabled())
 136     WebRuntimeFeatures::enableOverlayScrollbars(true);
 137
 138   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing)
 139       && !command_line.HasSwitch(switches::kDisableFastTextAutosizing))
 140     WebRuntimeFeatures::enableFastTextAutosizing(true);
 141
 142   if (command_line.HasSwitch(switches::kDisableRepaintAfterLayout))
 143     WebRuntimeFeatures::enableRepaintAfterLayout(false);
 144
 145   if (command_line.HasSwitch(switches::kEnableRepaintAfterLayout))
 146     WebRuntimeFeatures::enableRepaintAfterLayout(true);
 147
 148   if (command_line.HasSwitch(switches::kEnableTargetedStyleRecalc))
 149     WebRuntimeFeatures::enableTargetedStyleRecalc(true);
 150
 151   if (command_line.HasSwitch(switches::kEnableBleedingEdgeRenderingFastPaths))
 152     WebRuntimeFeatures::enableBleedingEdgeFastPaths(true);
 153
 154   if (command_line.HasSwitch(switches::kEnablePreciseMemoryInfo))
 155     WebRuntimeFeatures::enablePreciseMemoryInfo(true);
 156 }
 157
 158 }  // namespace content