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 "base/android/build_info.h"
  16 #include "media/base/android/media_codec_bridge.h"
  17 #endif
  18
  19 using blink::WebRuntimeFeatures;
  20
  21 namespace content {
  22
  23 static void SetRuntimeFeatureDefaultsForPlatform() {
  24 #if defined(OS_ANDROID)
  25   // MSE/EME implementation needs Android MediaCodec API.
  26   if (!media::MediaCodecBridge::IsAvailable()) {
  27     WebRuntimeFeatures::enableMediaSource(false);
  28     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
  29     WebRuntimeFeatures::enableEncryptedMedia(false);
  30   }
  31   // WebAudio is enabled by default but only when the MediaCodec API
  32   // is available.
  33   AndroidCpuFamily cpu_family = android_getCpuFamily();
  34   WebRuntimeFeatures::enableWebAudio(
  35       media::MediaCodecBridge::IsAvailable() &&
  36       ((cpu_family == ANDROID_CPU_FAMILY_ARM) ||
  37        (cpu_family == ANDROID_CPU_FAMILY_ARM64) ||
  38        (cpu_family == ANDROID_CPU_FAMILY_X86) ||
  39        (cpu_family == ANDROID_CPU_FAMILY_MIPS)));
  40
  41   // Android supports gamepad API for JellyBean and beyond
  42   WebRuntimeFeatures::enableGamepad(
  43       base::android::BuildInfo::GetInstance()->sdk_int() >= 16);
  44   // Android does not have support for PagePopup
  45   WebRuntimeFeatures::enablePagePopup(false);
  46   // Android does not yet support the Web Notification API. crbug.com/115320
  47   WebRuntimeFeatures::enableNotifications(false);
  48   // Android does not yet support SharedWorker. crbug.com/154571
  49   WebRuntimeFeatures::enableSharedWorker(false);
  50   // Android does not yet support NavigatorContentUtils.
  51   WebRuntimeFeatures::enableNavigatorContentUtils(false);
  52   WebRuntimeFeatures::enableTouchIconLoading(true);
  53   WebRuntimeFeatures::enableOrientationEvent(true);
  54   WebRuntimeFeatures::enableFastMobileScrolling(true);
  55   WebRuntimeFeatures::enableMediaCapture(true);
  56 #else
  57   WebRuntimeFeatures::enableNavigatorContentUtils(true);
  58 #endif  // defined(OS_ANDROID)
  59 }
  60
  61 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
  62     const CommandLine& command_line) {
  63   if (command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures))
  64     WebRuntimeFeatures::enableExperimentalFeatures(true);
  65
  66   SetRuntimeFeatureDefaultsForPlatform();
  67
  68   if (command_line.HasSwitch(switches::kDisableDatabases))
  69     WebRuntimeFeatures::enableDatabase(false);
  70
  71   if (command_line.HasSwitch(switches::kDisableApplicationCache))
  72     WebRuntimeFeatures::enableApplicationCache(false);
  73
  74   if (command_line.HasSwitch(switches::kDisableDesktopNotifications))
  75     WebRuntimeFeatures::enableNotifications(false);
  76
  77   if (command_line.HasSwitch(switches::kDisableNavigatorContentUtils))
  78     WebRuntimeFeatures::enableNavigatorContentUtils(false);
  79
  80   if (command_line.HasSwitch(switches::kDisableLocalStorage))
  81     WebRuntimeFeatures::enableLocalStorage(false);
  82
  83   if (command_line.HasSwitch(switches::kDisableSessionStorage))
  84     WebRuntimeFeatures::enableSessionStorage(false);
  85
  86   if (command_line.HasSwitch(switches::kDisableMediaSource))
  87     WebRuntimeFeatures::enableMediaSource(false);
  88
  89   if (command_line.HasSwitch(switches::kDisableSharedWorkers))
  90     WebRuntimeFeatures::enableSharedWorker(false);
  91
  92 #if defined(OS_ANDROID)
  93   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
  94     WebRuntimeFeatures::enableMediaStream(false);
  95     WebRuntimeFeatures::enablePeerConnection(false);
  96   }
  97
  98   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
  99     WebRuntimeFeatures::enableScriptedSpeech(false);
 100
 101   // WebAudio is enabled by default on ARM and X86, if the MediaCodec
 102   // API is available.
 103   WebRuntimeFeatures::enableWebAudio(
 104       !command_line.HasSwitch(switches::kDisableWebAudio) &&
 105       media::MediaCodecBridge::IsAvailable());
 106 #else
 107   if (command_line.HasSwitch(switches::kDisableWebAudio))
 108     WebRuntimeFeatures::enableWebAudio(false);
 109 #endif
 110
 111   if (command_line.HasSwitch(switches::kEnableEncryptedMedia))
 112     WebRuntimeFeatures::enableEncryptedMedia(true);
 113
 114   if (command_line.HasSwitch(switches::kDisablePrefixedEncryptedMedia))
 115     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
 116
 117   if (command_line.HasSwitch(switches::kEnableWebAnimationsSVG))
 118     WebRuntimeFeatures::enableWebAnimationsSVG(true);
 119
 120   if (command_line.HasSwitch(switches::kEnableWebMIDI))
 121     WebRuntimeFeatures::enableWebMIDI(true);
 122
 123   if (command_line.HasSwitch(switches::kDisableFileSystem))
 124     WebRuntimeFeatures::enableFileSystem(false);
 125
 126   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
 127     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 128
 129   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
 130     WebRuntimeFeatures::enableSpeechSynthesis(true);
 131
 132   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
 133     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 134
 135   if (command_line.HasSwitch(switches::kEnableWebGLImageChromium))
 136     WebRuntimeFeatures::enableWebGLImageChromium(true);
 137
 138   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
 139     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 140
 141   if (ui::IsOverlayScrollbarEnabled())
 142     WebRuntimeFeatures::enableOverlayScrollbars(true);
 143
 144   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing))
 145     WebRuntimeFeatures::enableFastTextAutosizing(true);
 146
 147   if (command_line.HasSwitch(switches::kDisableFastTextAutosizing))
 148     WebRuntimeFeatures::enableFastTextAutosizing(false);
 149
 150   if (command_line.HasSwitch(switches::kEnableTargetedStyleRecalc))
 151     WebRuntimeFeatures::enableTargetedStyleRecalc(true);
 152
 153   if (command_line.HasSwitch(switches::kEnableBleedingEdgeRenderingFastPaths))
 154     WebRuntimeFeatures::enableBleedingEdgeFastPaths(true);
 155
 156   if (command_line.HasSwitch(switches::kEnablePreciseMemoryInfo))
 157     WebRuntimeFeatures::enablePreciseMemoryInfo(true);
 158
 159   if (command_line.HasSwitch(switches::kEnableLayerSquashing))
 160     WebRuntimeFeatures::enableLayerSquashing(true);
 161 }
 162
 163 }  // namespace content