src/content/renderer/renderer_blink_platform_impl.cc

   1 // Copyright (c) 2012 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/renderer/renderer_blink_platform_impl.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/files/file_path.h"
   9 #include "base/lazy_instance.h"
  10 #include "base/logging.h"
  11 #include "base/memory/shared_memory.h"
  12 #include "base/message_loop/message_loop_proxy.h"
  13 #include "base/metrics/histogram.h"
  14 #include "base/numerics/safe_conversions.h"
  15 #include "base/strings/string_number_conversions.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "content/child/bluetooth/web_bluetooth_impl.h"
  18 #include "content/child/database_util.h"
  19 #include "content/child/file_info_util.h"
  20 #include "content/child/fileapi/webfilesystem_impl.h"
  21 #include "content/child/indexed_db/webidbfactory_impl.h"
  22 #include "content/child/npapi/npobject_util.h"
  23 #include "content/child/quota_dispatcher.h"
  24 #include "content/child/quota_message_filter.h"
  25 #include "content/child/simple_webmimeregistry_impl.h"
  26 #include "content/child/thread_safe_sender.h"
  27 #include "content/child/web_database_observer_impl.h"
  28 #include "content/child/webblobregistry_impl.h"
  29 #include "content/child/webfileutilities_impl.h"
  30 #include "content/child/webmessageportchannel_impl.h"
  31 #include "content/common/file_utilities_messages.h"
  32 #include "content/common/gpu/client/context_provider_command_buffer.h"
  33 #include "content/common/gpu/client/gpu_channel_host.h"
  34 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  35 #include "content/common/gpu/gpu_process_launch_causes.h"
  36 #include "content/common/mime_registry_messages.h"
  37 #include "content/common/view_messages.h"
  38 #include "content/public/common/content_switches.h"
  39 #include "content/public/common/webplugininfo.h"
  40 #include "content/public/renderer/content_renderer_client.h"
  41 #include "content/renderer/battery_status/battery_status_dispatcher.h"
  42 #include "content/renderer/device_sensors/device_light_event_pump.h"
  43 #include "content/renderer/device_sensors/device_motion_event_pump.h"
  44 #include "content/renderer/device_sensors/device_orientation_event_pump.h"
  45 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
  46 #include "content/renderer/gamepad_shared_memory_reader.h"
  47 #include "content/renderer/media/audio_decoder.h"
  48 #include "content/renderer/media/crypto/key_systems.h"
  49 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
  50 #include "content/renderer/media/renderer_webmidiaccessor_impl.h"
  51 #include "content/renderer/media/webcontentdecryptionmodule_impl.h"
  52 #include "content/renderer/render_thread_impl.h"
  53 #include "content/renderer/renderer_clipboard_client.h"
  54 #include "content/renderer/scheduler/renderer_scheduler.h"
  55 #include "content/renderer/scheduler/web_scheduler_impl.h"
  56 #include "content/renderer/screen_orientation/screen_orientation_observer.h"
  57 #include "content/renderer/webclipboard_impl.h"
  58 #include "content/renderer/webgraphicscontext3d_provider_impl.h"
  59 #include "content/renderer/webpublicsuffixlist_impl.h"
  60 #include "gpu/config/gpu_info.h"
  61 #include "ipc/ipc_sync_message_filter.h"
  62 #include "media/audio/audio_output_device.h"
  63 #include "media/base/audio_hardware_config.h"
  64 #include "media/filters/stream_parser_factory.h"
  65 #include "net/base/mime_util.h"
  66 #include "net/base/net_util.h"
  67 #include "storage/common/quota/quota_types.h"
  68 #include "third_party/WebKit/public/platform/WebBatteryStatusListener.h"
  69 #include "third_party/WebKit/public/platform/WebBlobRegistry.h"
  70 #include "third_party/WebKit/public/platform/WebDeviceLightListener.h"
  71 #include "third_party/WebKit/public/platform/WebDeviceMotionListener.h"
  72 #include "third_party/WebKit/public/platform/WebDeviceOrientationListener.h"
  73 #include "third_party/WebKit/public/platform/WebFileInfo.h"
  74 #include "third_party/WebKit/public/platform/WebGamepads.h"
  75 #include "third_party/WebKit/public/platform/WebMediaStreamCenter.h"
  76 #include "third_party/WebKit/public/platform/WebMediaStreamCenterClient.h"
  77 #include "third_party/WebKit/public/platform/WebPluginListBuilder.h"
  78 #include "third_party/WebKit/public/platform/WebURL.h"
  79 #include "third_party/WebKit/public/platform/WebVector.h"
  80 #include "ui/gfx/color_profile.h"
  81 #include "url/gurl.h"
  82 #include "webkit/common/gpu/context_provider_web_context.h"
  83
  84 #if defined(OS_ANDROID)
  85 #include "content/renderer/android/synchronous_compositor_factory.h"
  86 #include "content/renderer/media/android/audio_decoder_android.h"
  87 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
  88 #endif
  89
  90 #if defined(OS_MACOSX)
  91 #include "content/common/mac/font_descriptor.h"
  92 #include "content/common/mac/font_loader.h"
  93 #include "content/renderer/webscrollbarbehavior_impl_mac.h"
  94 #include "third_party/WebKit/public/platform/mac/WebSandboxSupport.h"
  95 #endif
  96
  97 #if defined(OS_POSIX)
  98 #include "base/file_descriptor_posix.h"
  99 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
 100 #include <map>
 101 #include <string>
 102
 103 #include "base/synchronization/lock.h"
 104 #include "content/common/child_process_sandbox_support_impl_linux.h"
 105 #include "third_party/WebKit/public/platform/linux/WebFallbackFont.h"
 106 #include "third_party/WebKit/public/platform/linux/WebSandboxSupport.h"
 107 #include "third_party/icu/source/common/unicode/utf16.h"
 108 #endif
 109 #endif
 110
 111 #if defined(OS_WIN)
 112 #include "content/common/child_process_messages.h"
 113 #include "third_party/WebKit/public/platform/win/WebSandboxSupport.h"
 114 #endif
 115
 116 #if defined(USE_AURA)
 117 #include "content/renderer/webscrollbarbehavior_impl_gtkoraura.h"
 118 #elif !defined(OS_MACOSX)
 119 #include "third_party/WebKit/public/platform/WebScrollbarBehavior.h"
 120 #define WebScrollbarBehaviorImpl blink::WebScrollbarBehavior
 121 #endif
 122
 123 #if defined(ENABLE_WEBRTC)
 124 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 125 #endif
 126
 127 using blink::Platform;
 128 using blink::WebAudioDevice;
 129 using blink::WebBlobRegistry;
 130 using blink::WebDatabaseObserver;
 131 using blink::WebFileInfo;
 132 using blink::WebFileSystem;
 133 using blink::WebGamepad;
 134 using blink::WebGamepads;
 135 using blink::WebIDBFactory;
 136 using blink::WebMIDIAccessor;
 137 using blink::WebMediaStreamCenter;
 138 using blink::WebMediaStreamCenterClient;
 139 using blink::WebMimeRegistry;
 140 using blink::WebRTCPeerConnectionHandler;
 141 using blink::WebRTCPeerConnectionHandlerClient;
 142 using blink::WebStorageNamespace;
 143 using blink::WebString;
 144 using blink::WebURL;
 145 using blink::WebVector;
 146
 147 namespace content {
 148
 149 namespace {
 150
 151 bool g_sandbox_enabled = true;
 152 double g_test_device_light_data = -1;
 153 base::LazyInstance<blink::WebDeviceMotionData>::Leaky
 154     g_test_device_motion_data = LAZY_INSTANCE_INITIALIZER;
 155 base::LazyInstance<blink::WebDeviceOrientationData>::Leaky
 156     g_test_device_orientation_data = LAZY_INSTANCE_INITIALIZER;
 157 // Set in startListening() when running layout tests, unset in stopListening(),
 158 // not owned by us.
 159 blink::WebBatteryStatusListener* g_test_battery_status_listener = nullptr;
 160
 161 } // namespace
 162
 163 //------------------------------------------------------------------------------
 164
 165 class RendererBlinkPlatformImpl::MimeRegistry
 166     : public SimpleWebMimeRegistryImpl {
 167  public:
 168   virtual blink::WebMimeRegistry::SupportsType supportsMediaMIMEType(
 169       const blink::WebString& mime_type,
 170       const blink::WebString& codecs,
 171       const blink::WebString& key_system);
 172   virtual bool supportsMediaSourceMIMEType(const blink::WebString& mime_type,
 173                                            const blink::WebString& codecs);
 174   virtual bool supportsEncryptedMediaMIMEType(const WebString& key_system,
 175                                               const WebString& mime_type,
 176                                               const WebString& codecs) override;
 177   virtual blink::WebString mimeTypeForExtension(
 178       const blink::WebString& file_extension);
 179   virtual blink::WebString mimeTypeFromFile(
 180       const blink::WebString& file_path);
 181 };
 182
 183 class RendererBlinkPlatformImpl::FileUtilities : public WebFileUtilitiesImpl {
 184  public:
 185   explicit FileUtilities(ThreadSafeSender* sender)
 186       : thread_safe_sender_(sender) {}
 187   virtual bool getFileInfo(const WebString& path, WebFileInfo& result);
 188  private:
 189   bool SendSyncMessageFromAnyThread(IPC::SyncMessage* msg) const;
 190   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 191 };
 192
 193 #if defined(OS_ANDROID)
 194 // WebKit doesn't use WebSandboxSupport on android so we don't need to
 195 // implement anything here.
 196 class RendererBlinkPlatformImpl::SandboxSupport {};
 197 #else
 198 class RendererBlinkPlatformImpl::SandboxSupport
 199     : public blink::WebSandboxSupport {
 200  public:
 201   virtual ~SandboxSupport() {}
 202
 203 #if defined(OS_WIN)
 204   virtual bool ensureFontLoaded(HFONT);
 205 #elif defined(OS_MACOSX)
 206   virtual bool loadFont(
 207       NSFont* src_font,
 208       CGFontRef* container,
 209       uint32* font_id);
 210 #elif defined(OS_POSIX)
 211   virtual void getFallbackFontForCharacter(
 212       blink::WebUChar32 character,
 213       const char* preferred_locale,
 214       blink::WebFallbackFont* fallbackFont);
 215   virtual void getRenderStyleForStrike(
 216       const char* family, int sizeAndStyle, blink::WebFontRenderStyle* out);
 217
 218  private:
 219   // WebKit likes to ask us for the correct font family to use for a set of
 220   // unicode code points. It needs this information frequently so we cache it
 221   // here.
 222   base::Lock unicode_font_families_mutex_;
 223   std::map<int32_t, blink::WebFallbackFont> unicode_font_families_;
 224 #endif
 225 };
 226 #endif  // defined(OS_ANDROID)
 227
 228 //------------------------------------------------------------------------------
 229
 230 RendererBlinkPlatformImpl::RendererBlinkPlatformImpl(
 231     RendererScheduler* renderer_scheduler)
 232     : web_scheduler_(new WebSchedulerImpl(renderer_scheduler)),
 233       clipboard_client_(new RendererClipboardClient),
 234       clipboard_(new WebClipboardImpl(clipboard_client_.get())),
 235       mime_registry_(new RendererBlinkPlatformImpl::MimeRegistry),
 236       sudden_termination_disables_(0),
 237       plugin_refresh_allowed_(true),
 238       default_task_runner_(renderer_scheduler->DefaultTaskRunner()),
 239       child_thread_loop_(base::MessageLoopProxy::current()),
 240       web_scrollbar_behavior_(new WebScrollbarBehaviorImpl),
 241       bluetooth_(new WebBluetoothImpl) {
 242   if (g_sandbox_enabled && sandboxEnabled()) {
 243     sandbox_support_.reset(new RendererBlinkPlatformImpl::SandboxSupport);
 244   } else {
 245     DVLOG(1) << "Disabling sandbox support for testing.";
 246   }
 247
 248   // ChildThread may not exist in some tests.
 249   if (ChildThread::current()) {
 250     sync_message_filter_ = ChildThread::current()->sync_message_filter();
 251     thread_safe_sender_ = ChildThread::current()->thread_safe_sender();
 252     quota_message_filter_ = ChildThread::current()->quota_message_filter();
 253     blob_registry_.reset(new WebBlobRegistryImpl(thread_safe_sender_.get()));
 254     web_idb_factory_.reset(new WebIDBFactoryImpl(thread_safe_sender_.get()));
 255     web_database_observer_impl_.reset(
 256         new WebDatabaseObserverImpl(sync_message_filter_.get()));
 257   }
 258 }
 259
 260 RendererBlinkPlatformImpl::~RendererBlinkPlatformImpl() {
 261   WebFileSystemImpl::DeleteThreadSpecificInstance();
 262 }
 263
 264 //------------------------------------------------------------------------------
 265
 266 void RendererBlinkPlatformImpl::callOnMainThread(void (*func)(void*),
 267                                                  void* context) {
 268   default_task_runner_->PostTask(FROM_HERE, base::Bind(func, context));
 269 }
 270
 271 blink::WebScheduler* RendererBlinkPlatformImpl::scheduler() {
 272   return web_scheduler_.get();
 273 }
 274
 275 blink::WebClipboard* RendererBlinkPlatformImpl::clipboard() {
 276   blink::WebClipboard* clipboard =
 277       GetContentClient()->renderer()->OverrideWebClipboard();
 278   if (clipboard)
 279     return clipboard;
 280   return clipboard_.get();
 281 }
 282
 283 blink::WebMimeRegistry* RendererBlinkPlatformImpl::mimeRegistry() {
 284   return mime_registry_.get();
 285 }
 286
 287 blink::WebFileUtilities* RendererBlinkPlatformImpl::fileUtilities() {
 288   if (!file_utilities_) {
 289     file_utilities_.reset(new FileUtilities(thread_safe_sender_.get()));
 290     file_utilities_->set_sandbox_enabled(sandboxEnabled());
 291   }
 292   return file_utilities_.get();
 293 }
 294
 295 blink::WebSandboxSupport* RendererBlinkPlatformImpl::sandboxSupport() {
 296 #if defined(OS_ANDROID)
 297   // WebKit doesn't use WebSandboxSupport on android.
 298   return NULL;
 299 #else
 300   return sandbox_support_.get();
 301 #endif
 302 }
 303
 304 blink::WebCookieJar* RendererBlinkPlatformImpl::cookieJar() {
 305   NOTREACHED() << "Use WebFrameClient::cookieJar() instead!";
 306   return NULL;
 307 }
 308
 309 blink::WebThemeEngine* RendererBlinkPlatformImpl::themeEngine() {
 310   blink::WebThemeEngine* theme_engine =
 311       GetContentClient()->renderer()->OverrideThemeEngine();
 312   if (theme_engine)
 313     return theme_engine;
 314   return BlinkPlatformImpl::themeEngine();
 315 }
 316
 317 bool RendererBlinkPlatformImpl::sandboxEnabled() {
 318   // As explained in Platform.h, this function is used to decide
 319   // whether to allow file system operations to come out of WebKit or not.
 320   // Even if the sandbox is disabled, there's no reason why the code should
 321   // act any differently...unless we're in single process mode.  In which
 322   // case, we have no other choice.  Platform.h discourages using
 323   // this switch unless absolutely necessary, so hopefully we won't end up
 324   // with too many code paths being different in single-process mode.
 325   return !CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess);
 326 }
 327
 328 unsigned long long RendererBlinkPlatformImpl::visitedLinkHash(
 329     const char* canonical_url,
 330     size_t length) {
 331   return GetContentClient()->renderer()->VisitedLinkHash(canonical_url, length);
 332 }
 333
 334 bool RendererBlinkPlatformImpl::isLinkVisited(unsigned long long link_hash) {
 335   return GetContentClient()->renderer()->IsLinkVisited(link_hash);
 336 }
 337
 338 void RendererBlinkPlatformImpl::createMessageChannel(
 339     blink::WebMessagePortChannel** channel1,
 340     blink::WebMessagePortChannel** channel2) {
 341   WebMessagePortChannelImpl::CreatePair(
 342       child_thread_loop_.get(), channel1, channel2);
 343 }
 344
 345 blink::WebPrescientNetworking*
 346 RendererBlinkPlatformImpl::prescientNetworking() {
 347   return GetContentClient()->renderer()->GetPrescientNetworking();
 348 }
 349
 350 void RendererBlinkPlatformImpl::cacheMetadata(const blink::WebURL& url,
 351                                               double response_time,
 352                                               const char* data,
 353                                               size_t size) {
 354   // Let the browser know we generated cacheable metadata for this resource. The
 355   // browser may cache it and return it on subsequent responses to speed
 356   // the processing of this resource.
 357   std::vector<char> copy(data, data + size);
 358   RenderThread::Get()->Send(
 359       new ViewHostMsg_DidGenerateCacheableMetadata(url, response_time, copy));
 360 }
 361
 362 WebString RendererBlinkPlatformImpl::defaultLocale() {
 363   return base::ASCIIToUTF16(RenderThread::Get()->GetLocale());
 364 }
 365
 366 void RendererBlinkPlatformImpl::suddenTerminationChanged(bool enabled) {
 367   if (enabled) {
 368     // We should not get more enables than disables, but we want it to be a
 369     // non-fatal error if it does happen.
 370     DCHECK_GT(sudden_termination_disables_, 0);
 371     sudden_termination_disables_ = std::max(sudden_termination_disables_ - 1,
 372                                             0);
 373     if (sudden_termination_disables_ != 0)
 374       return;
 375   } else {
 376     sudden_termination_disables_++;
 377     if (sudden_termination_disables_ != 1)
 378       return;
 379   }
 380
 381   RenderThread* thread = RenderThread::Get();
 382   if (thread)  // NULL in unittests.
 383     thread->Send(new ViewHostMsg_SuddenTerminationChanged(enabled));
 384 }
 385
 386 WebStorageNamespace* RendererBlinkPlatformImpl::createLocalStorageNamespace() {
 387   return new WebStorageNamespaceImpl();
 388 }
 389
 390
 391 //------------------------------------------------------------------------------
 392
 393 WebIDBFactory* RendererBlinkPlatformImpl::idbFactory() {
 394   return web_idb_factory_.get();
 395 }
 396
 397 //------------------------------------------------------------------------------
 398
 399 WebFileSystem* RendererBlinkPlatformImpl::fileSystem() {
 400   return WebFileSystemImpl::ThreadSpecificInstance(child_thread_loop_.get());
 401 }
 402
 403 //------------------------------------------------------------------------------
 404
 405 WebMimeRegistry::SupportsType
 406 RendererBlinkPlatformImpl::MimeRegistry::supportsMediaMIMEType(
 407     const WebString& mime_type,
 408     const WebString& codecs,
 409     const WebString& key_system) {
 410   const std::string mime_type_ascii = ToASCIIOrEmpty(mime_type);
 411   // Not supporting the container is a flat-out no.
 412   if (!net::IsSupportedMediaMimeType(mime_type_ascii))
 413     return IsNotSupported;
 414
 415   if (!key_system.isEmpty()) {
 416     // Check whether the key system is supported with the mime_type and codecs.
 417
 418     // Chromium only supports ASCII parameters.
 419     if (!base::IsStringASCII(key_system))
 420       return IsNotSupported;
 421
 422     std::string key_system_ascii =
 423         GetUnprefixedKeySystemName(base::UTF16ToASCII(key_system));
 424     std::vector<std::string> strict_codecs;
 425     net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, true);
 426
 427     if (!IsSupportedKeySystemWithMediaMimeType(
 428             mime_type_ascii, strict_codecs, key_system_ascii)) {
 429       return IsNotSupported;
 430     }
 431
 432     // Continue processing the mime_type and codecs.
 433   }
 434
 435   // Check list of strict codecs to see if it is supported.
 436   if (net::IsStrictMediaMimeType(mime_type_ascii)) {
 437     // Check if the codecs are a perfect match.
 438     std::vector<std::string> strict_codecs;
 439     net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, false);
 440     return static_cast<WebMimeRegistry::SupportsType> (
 441         net::IsSupportedStrictMediaMimeType(mime_type_ascii, strict_codecs));
 442   }
 443
 444   // If we don't recognize the codec, it's possible we support it.
 445   std::vector<std::string> parsed_codecs;
 446   net::ParseCodecString(ToASCIIOrEmpty(codecs), &parsed_codecs, true);
 447   if (!net::AreSupportedMediaCodecs(parsed_codecs))
 448     return MayBeSupported;
 449
 450   // Otherwise we have a perfect match.
 451   return IsSupported;
 452 }
 453
 454 bool RendererBlinkPlatformImpl::MimeRegistry::supportsMediaSourceMIMEType(
 455     const blink::WebString& mime_type,
 456     const WebString& codecs) {
 457   const std::string mime_type_ascii = ToASCIIOrEmpty(mime_type);
 458   std::vector<std::string> parsed_codec_ids;
 459   net::ParseCodecString(ToASCIIOrEmpty(codecs), &parsed_codec_ids, false);
 460   if (mime_type_ascii.empty())
 461     return false;
 462   return media::StreamParserFactory::IsTypeSupported(
 463       mime_type_ascii, parsed_codec_ids);
 464 }
 465
 466 bool RendererBlinkPlatformImpl::MimeRegistry::supportsEncryptedMediaMIMEType(
 467     const WebString& key_system,
 468     const WebString& mime_type,
 469     const WebString& codecs) {
 470   // Chromium only supports ASCII parameters.
 471   if (!base::IsStringASCII(key_system) || !base::IsStringASCII(mime_type) ||
 472       !base::IsStringASCII(codecs)) {
 473     return false;
 474   }
 475
 476   if (key_system.isEmpty())
 477     return false;
 478
 479   const std::string mime_type_ascii = base::UTF16ToASCII(mime_type);
 480
 481   std::vector<std::string> codec_vector;
 482   bool strip_suffix = !net::IsStrictMediaMimeType(mime_type_ascii);
 483   net::ParseCodecString(base::UTF16ToASCII(codecs), &codec_vector,
 484                         strip_suffix);
 485
 486   return IsSupportedKeySystemWithMediaMimeType(
 487       mime_type_ascii, codec_vector, base::UTF16ToASCII(key_system));
 488 }
 489
 490 WebString RendererBlinkPlatformImpl::MimeRegistry::mimeTypeForExtension(
 491     const WebString& file_extension) {
 492   if (IsPluginProcess())
 493     return SimpleWebMimeRegistryImpl::mimeTypeForExtension(file_extension);
 494
 495   // The sandbox restricts our access to the registry, so we need to proxy
 496   // these calls over to the browser process.
 497   std::string mime_type;
 498   RenderThread::Get()->Send(
 499       new MimeRegistryMsg_GetMimeTypeFromExtension(
 500           base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type));
 501   return base::ASCIIToUTF16(mime_type);
 502 }
 503
 504 WebString RendererBlinkPlatformImpl::MimeRegistry::mimeTypeFromFile(
 505     const WebString& file_path) {
 506   if (IsPluginProcess())
 507     return SimpleWebMimeRegistryImpl::mimeTypeFromFile(file_path);
 508
 509   // The sandbox restricts our access to the registry, so we need to proxy
 510   // these calls over to the browser process.
 511   std::string mime_type;
 512   RenderThread::Get()->Send(new MimeRegistryMsg_GetMimeTypeFromFile(
 513       base::FilePath::FromUTF16Unsafe(file_path),
 514       &mime_type));
 515   return base::ASCIIToUTF16(mime_type);
 516 }
 517
 518 //------------------------------------------------------------------------------
 519
 520 bool RendererBlinkPlatformImpl::FileUtilities::getFileInfo(
 521     const WebString& path,
 522     WebFileInfo& web_file_info) {
 523   base::File::Info file_info;
 524   base::File::Error status = base::File::FILE_ERROR_MAX;
 525   if (!SendSyncMessageFromAnyThread(new FileUtilitiesMsg_GetFileInfo(
 526            base::FilePath::FromUTF16Unsafe(path), &file_info, &status)) ||
 527       status != base::File::FILE_OK) {
 528     return false;
 529   }
 530   FileInfoToWebFileInfo(file_info, &web_file_info);
 531   web_file_info.platformPath = path;
 532   return true;
 533 }
 534
 535 bool RendererBlinkPlatformImpl::FileUtilities::SendSyncMessageFromAnyThread(
 536     IPC::SyncMessage* msg) const {
 537   base::TimeTicks begin = base::TimeTicks::Now();
 538   const bool success = thread_safe_sender_->Send(msg);
 539   base::TimeDelta delta = base::TimeTicks::Now() - begin;
 540   UMA_HISTOGRAM_TIMES("RendererSyncIPC.ElapsedTime", delta);
 541   return success;
 542 }
 543
 544 //------------------------------------------------------------------------------
 545
 546 #if defined(OS_WIN)
 547
 548 bool RendererBlinkPlatformImpl::SandboxSupport::ensureFontLoaded(HFONT font) {
 549   LOGFONT logfont;
 550   GetObject(font, sizeof(LOGFONT), &logfont);
 551   RenderThread::Get()->PreCacheFont(logfont);
 552   return true;
 553 }
 554
 555 #elif defined(OS_MACOSX)
 556
 557 bool RendererBlinkPlatformImpl::SandboxSupport::loadFont(NSFont* src_font,
 558                                                          CGFontRef* out,
 559                                                          uint32* font_id) {
 560   uint32 font_data_size;
 561   FontDescriptor src_font_descriptor(src_font);
 562   base::SharedMemoryHandle font_data;
 563   if (!RenderThread::Get()->Send(new ViewHostMsg_LoadFont(
 564         src_font_descriptor, &font_data_size, &font_data, font_id))) {
 565     *out = NULL;
 566     *font_id = 0;
 567     return false;
 568   }
 569
 570   if (font_data_size == 0 || font_data == base::SharedMemory::NULLHandle() ||
 571       *font_id == 0) {
 572     LOG(ERROR) << "Bad response from ViewHostMsg_LoadFont() for " <<
 573         src_font_descriptor.font_name;
 574     *out = NULL;
 575     *font_id = 0;
 576     return false;
 577   }
 578
 579   // TODO(jeremy): Need to call back into WebKit to make sure that the font
 580   // isn't already activated, based on the font id.  If it's already
 581   // activated, don't reactivate it here - crbug.com/72727 .
 582
 583   return FontLoader::CGFontRefFromBuffer(font_data, font_data_size, out);
 584 }
 585
 586 #elif defined(OS_ANDROID)
 587
 588 // WebKit doesn't use WebSandboxSupport on android so we don't need to
 589 // implement anything here. This is cleaner to support than excluding the
 590 // whole class for android.
 591
 592 #elif defined(OS_POSIX)
 593
 594 void RendererBlinkPlatformImpl::SandboxSupport::getFallbackFontForCharacter(
 595     blink::WebUChar32 character,
 596     const char* preferred_locale,
 597     blink::WebFallbackFont* fallbackFont) {
 598   base::AutoLock lock(unicode_font_families_mutex_);
 599   const std::map<int32_t, blink::WebFallbackFont>::const_iterator iter =
 600       unicode_font_families_.find(character);
 601   if (iter != unicode_font_families_.end()) {
 602     fallbackFont->name = iter->second.name;
 603     fallbackFont->filename = iter->second.filename;
 604     fallbackFont->fontconfigInterfaceId = iter->second.fontconfigInterfaceId;
 605     fallbackFont->ttcIndex = iter->second.ttcIndex;
 606     fallbackFont->isBold = iter->second.isBold;
 607     fallbackFont->isItalic = iter->second.isItalic;
 608     return;
 609   }
 610
 611   GetFallbackFontForCharacter(character, preferred_locale, fallbackFont);
 612   unicode_font_families_.insert(std::make_pair(character, *fallbackFont));
 613 }
 614
 615 void RendererBlinkPlatformImpl::SandboxSupport::getRenderStyleForStrike(
 616     const char* family,
 617     int sizeAndStyle,
 618     blink::WebFontRenderStyle* out) {
 619   GetRenderStyleForStrike(family, sizeAndStyle, out);
 620 }
 621
 622 #endif
 623
 624 //------------------------------------------------------------------------------
 625
 626 Platform::FileHandle RendererBlinkPlatformImpl::databaseOpenFile(
 627     const WebString& vfs_file_name,
 628     int desired_flags) {
 629   return DatabaseUtil::DatabaseOpenFile(
 630       vfs_file_name, desired_flags, sync_message_filter_.get());
 631 }
 632
 633 int RendererBlinkPlatformImpl::databaseDeleteFile(
 634     const WebString& vfs_file_name,
 635     bool sync_dir) {
 636   return DatabaseUtil::DatabaseDeleteFile(
 637       vfs_file_name, sync_dir, sync_message_filter_.get());
 638 }
 639
 640 long RendererBlinkPlatformImpl::databaseGetFileAttributes(
 641     const WebString& vfs_file_name) {
 642   return DatabaseUtil::DatabaseGetFileAttributes(vfs_file_name,
 643                                                  sync_message_filter_.get());
 644 }
 645
 646 long long RendererBlinkPlatformImpl::databaseGetFileSize(
 647     const WebString& vfs_file_name) {
 648   return DatabaseUtil::DatabaseGetFileSize(vfs_file_name,
 649                                            sync_message_filter_.get());
 650 }
 651
 652 long long RendererBlinkPlatformImpl::databaseGetSpaceAvailableForOrigin(
 653     const WebString& origin_identifier) {
 654   return DatabaseUtil::DatabaseGetSpaceAvailable(origin_identifier,
 655                                                  sync_message_filter_.get());
 656 }
 657
 658 bool RendererBlinkPlatformImpl::canAccelerate2dCanvas() {
 659   RenderThreadImpl* thread = RenderThreadImpl::current();
 660   GpuChannelHost* host = thread->EstablishGpuChannelSync(
 661       CAUSE_FOR_GPU_LAUNCH_CANVAS_2D);
 662   if (!host)
 663     return false;
 664
 665   return host->gpu_info().SupportsAccelerated2dCanvas();
 666 }
 667
 668 bool RendererBlinkPlatformImpl::isThreadedCompositingEnabled() {
 669   RenderThreadImpl* thread = RenderThreadImpl::current();
 670   // thread can be NULL in tests.
 671   return thread && thread->compositor_message_loop_proxy().get();
 672 }
 673
 674 double RendererBlinkPlatformImpl::audioHardwareSampleRate() {
 675   RenderThreadImpl* thread = RenderThreadImpl::current();
 676   return thread->GetAudioHardwareConfig()->GetOutputSampleRate();
 677 }
 678
 679 size_t RendererBlinkPlatformImpl::audioHardwareBufferSize() {
 680   RenderThreadImpl* thread = RenderThreadImpl::current();
 681   return thread->GetAudioHardwareConfig()->GetOutputBufferSize();
 682 }
 683
 684 unsigned RendererBlinkPlatformImpl::audioHardwareOutputChannels() {
 685   RenderThreadImpl* thread = RenderThreadImpl::current();
 686   return thread->GetAudioHardwareConfig()->GetOutputChannels();
 687 }
 688
 689 WebDatabaseObserver* RendererBlinkPlatformImpl::databaseObserver() {
 690   return web_database_observer_impl_.get();
 691 }
 692
 693 WebAudioDevice* RendererBlinkPlatformImpl::createAudioDevice(
 694     size_t buffer_size,
 695     unsigned input_channels,
 696     unsigned channels,
 697     double sample_rate,
 698     WebAudioDevice::RenderCallback* callback,
 699     const blink::WebString& input_device_id) {
 700   // Use a mock for testing.
 701   blink::WebAudioDevice* mock_device =
 702       GetContentClient()->renderer()->OverrideCreateAudioDevice(sample_rate);
 703   if (mock_device)
 704     return mock_device;
 705
 706   // The |channels| does not exactly identify the channel layout of the
 707   // device. The switch statement below assigns a best guess to the channel
 708   // layout based on number of channels.
 709   // TODO(crogers): WebKit should give the channel layout instead of the hard
 710   // channel count.
 711   media::ChannelLayout layout = media::CHANNEL_LAYOUT_UNSUPPORTED;
 712   switch (channels) {
 713     case 1:
 714       layout = media::CHANNEL_LAYOUT_MONO;
 715       break;
 716     case 2:
 717       layout = media::CHANNEL_LAYOUT_STEREO;
 718       break;
 719     case 3:
 720       layout = media::CHANNEL_LAYOUT_2_1;
 721       break;
 722     case 4:
 723       layout = media::CHANNEL_LAYOUT_4_0;
 724       break;
 725     case 5:
 726       layout = media::CHANNEL_LAYOUT_5_0;
 727       break;
 728     case 6:
 729       layout = media::CHANNEL_LAYOUT_5_1;
 730       break;
 731     case 7:
 732       layout = media::CHANNEL_LAYOUT_7_0;
 733       break;
 734     case 8:
 735       layout = media::CHANNEL_LAYOUT_7_1;
 736       break;
 737     default:
 738       layout = media::CHANNEL_LAYOUT_STEREO;
 739   }
 740
 741   int session_id = 0;
 742   if (input_device_id.isNull() ||
 743       !base::StringToInt(base::UTF16ToUTF8(input_device_id), &session_id)) {
 744     if (input_channels > 0)
 745       DLOG(WARNING) << "createAudioDevice(): request for audio input ignored";
 746
 747     input_channels = 0;
 748   }
 749
 750   media::AudioParameters params(
 751       media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
 752       layout, static_cast<int>(sample_rate), 16, buffer_size,
 753       media::AudioParameters::NO_EFFECTS);
 754
 755   return new RendererWebAudioDeviceImpl(params, callback, session_id);
 756 }
 757
 758 #if defined(OS_ANDROID)
 759 bool RendererBlinkPlatformImpl::loadAudioResource(
 760     blink::WebAudioBus* destination_bus,
 761     const char* audio_file_data,
 762     size_t data_size) {
 763   return DecodeAudioFileData(destination_bus,
 764                              audio_file_data,
 765                              data_size,
 766                              thread_safe_sender_);
 767 }
 768 #else
 769 bool RendererBlinkPlatformImpl::loadAudioResource(
 770     blink::WebAudioBus* destination_bus,
 771     const char* audio_file_data,
 772     size_t data_size) {
 773   return DecodeAudioFileData(
 774       destination_bus, audio_file_data, data_size);
 775 }
 776 #endif  // defined(OS_ANDROID)
 777
 778 //------------------------------------------------------------------------------
 779
 780 blink::WebMIDIAccessor* RendererBlinkPlatformImpl::createMIDIAccessor(
 781     blink::WebMIDIAccessorClient* client) {
 782   blink::WebMIDIAccessor* accessor =
 783       GetContentClient()->renderer()->OverrideCreateMIDIAccessor(client);
 784   if (accessor)
 785     return accessor;
 786
 787   return new RendererWebMIDIAccessorImpl(client);
 788 }
 789
 790 void RendererBlinkPlatformImpl::getPluginList(
 791     bool refresh,
 792     blink::WebPluginListBuilder* builder) {
 793 #if defined(ENABLE_PLUGINS)
 794   std::vector<WebPluginInfo> plugins;
 795   if (!plugin_refresh_allowed_)
 796     refresh = false;
 797   RenderThread::Get()->Send(
 798       new ViewHostMsg_GetPlugins(refresh, &plugins));
 799   for (size_t i = 0; i < plugins.size(); ++i) {
 800     const WebPluginInfo& plugin = plugins[i];
 801
 802     builder->addPlugin(
 803         plugin.name, plugin.desc,
 804         plugin.path.BaseName().AsUTF16Unsafe());
 805
 806     for (size_t j = 0; j < plugin.mime_types.size(); ++j) {
 807       const WebPluginMimeType& mime_type = plugin.mime_types[j];
 808
 809       builder->addMediaTypeToLastPlugin(
 810           WebString::fromUTF8(mime_type.mime_type), mime_type.description);
 811
 812       for (size_t k = 0; k < mime_type.file_extensions.size(); ++k) {
 813         builder->addFileExtensionToLastMediaType(
 814             WebString::fromUTF8(mime_type.file_extensions[k]));
 815       }
 816     }
 817   }
 818 #endif
 819 }
 820
 821 //------------------------------------------------------------------------------
 822
 823 blink::WebPublicSuffixList* RendererBlinkPlatformImpl::publicSuffixList() {
 824   return &public_suffix_list_;
 825 }
 826
 827 //------------------------------------------------------------------------------
 828
 829 blink::WebString RendererBlinkPlatformImpl::signedPublicKeyAndChallengeString(
 830     unsigned key_size_index,
 831     const blink::WebString& challenge,
 832     const blink::WebURL& url) {
 833   std::string signed_public_key;
 834   RenderThread::Get()->Send(new ViewHostMsg_Keygen(
 835       static_cast<uint32>(key_size_index),
 836       challenge.utf8(),
 837       GURL(url),
 838       &signed_public_key));
 839   return WebString::fromUTF8(signed_public_key);
 840 }
 841
 842 //------------------------------------------------------------------------------
 843
 844 void RendererBlinkPlatformImpl::screenColorProfile(
 845     WebVector<char>* to_profile) {
 846 #if defined(OS_WIN)
 847   // On Windows screen color profile is only available in the browser.
 848   std::vector<char> profile;
 849   // This Send() can be called from any impl-side thread. Use a thread
 850   // safe send to avoid crashing trying to access RenderThread::Get(),
 851   // which is not accessible from arbitrary threads.
 852   thread_safe_sender_->Send(
 853       new ViewHostMsg_GetMonitorColorProfile(&profile));
 854   *to_profile = profile;
 855 #else
 856   // On other platforms, the primary monitor color profile can be read
 857   // directly.
 858   gfx::ColorProfile profile;
 859   *to_profile = profile.profile();
 860 #endif
 861 }
 862
 863 //------------------------------------------------------------------------------
 864
 865 blink::WebScrollbarBehavior* RendererBlinkPlatformImpl::scrollbarBehavior() {
 866   return web_scrollbar_behavior_.get();
 867 }
 868
 869 //------------------------------------------------------------------------------
 870
 871 WebBlobRegistry* RendererBlinkPlatformImpl::blobRegistry() {
 872   // blob_registry_ can be NULL when running some tests.
 873   return blob_registry_.get();
 874 }
 875
 876 //------------------------------------------------------------------------------
 877
 878 void RendererBlinkPlatformImpl::sampleGamepads(WebGamepads& gamepads) {
 879   PlatformEventObserverBase* observer =
 880       platform_event_observers_.Lookup(blink::WebPlatformEventGamepad);
 881   if (!observer)
 882     return;
 883   static_cast<RendererGamepadProvider*>(observer)->SampleGamepads(gamepads);
 884 }
 885
 886 //------------------------------------------------------------------------------
 887
 888 WebRTCPeerConnectionHandler*
 889 RendererBlinkPlatformImpl::createRTCPeerConnectionHandler(
 890     WebRTCPeerConnectionHandlerClient* client) {
 891   RenderThreadImpl* render_thread = RenderThreadImpl::current();
 892   DCHECK(render_thread);
 893   if (!render_thread)
 894     return NULL;
 895
 896 #if defined(ENABLE_WEBRTC)
 897   WebRTCPeerConnectionHandler* peer_connection_handler =
 898       GetContentClient()->renderer()->OverrideCreateWebRTCPeerConnectionHandler(
 899           client);
 900   if (peer_connection_handler)
 901     return peer_connection_handler;
 902
 903   PeerConnectionDependencyFactory* rtc_dependency_factory =
 904       render_thread->GetPeerConnectionDependencyFactory();
 905   return rtc_dependency_factory->CreateRTCPeerConnectionHandler(client);
 906 #else
 907   return NULL;
 908 #endif  // defined(ENABLE_WEBRTC)
 909 }
 910
 911 //------------------------------------------------------------------------------
 912
 913 WebMediaStreamCenter* RendererBlinkPlatformImpl::createMediaStreamCenter(
 914     WebMediaStreamCenterClient* client) {
 915   RenderThreadImpl* render_thread = RenderThreadImpl::current();
 916   DCHECK(render_thread);
 917   if (!render_thread)
 918     return NULL;
 919   return render_thread->CreateMediaStreamCenter(client);
 920 }
 921
 922 // static
 923 bool RendererBlinkPlatformImpl::SetSandboxEnabledForTesting(bool enable) {
 924   bool was_enabled = g_sandbox_enabled;
 925   g_sandbox_enabled = enable;
 926   return was_enabled;
 927 }
 928
 929 //------------------------------------------------------------------------------
 930
 931 blink::WebSpeechSynthesizer* RendererBlinkPlatformImpl::createSpeechSynthesizer(
 932     blink::WebSpeechSynthesizerClient* client) {
 933   return GetContentClient()->renderer()->OverrideSpeechSynthesizer(client);
 934 }
 935
 936 //------------------------------------------------------------------------------
 937
 938 bool RendererBlinkPlatformImpl::processMemorySizesInBytes(
 939     size_t* private_bytes,
 940     size_t* shared_bytes) {
 941   content::RenderThread::Get()->Send(
 942       new ViewHostMsg_GetProcessMemorySizes(private_bytes, shared_bytes));
 943   return true;
 944 }
 945
 946 //------------------------------------------------------------------------------
 947
 948 blink::WebGraphicsContext3D*
 949 RendererBlinkPlatformImpl::createOffscreenGraphicsContext3D(
 950     const blink::WebGraphicsContext3D::Attributes& attributes) {
 951   return createOffscreenGraphicsContext3D(attributes, NULL);
 952 }
 953
 954 blink::WebGraphicsContext3D*
 955 RendererBlinkPlatformImpl::createOffscreenGraphicsContext3D(
 956     const blink::WebGraphicsContext3D::Attributes& attributes,
 957     blink::WebGraphicsContext3D* share_context) {
 958   return createOffscreenGraphicsContext3D(attributes, share_context, NULL);
 959 }
 960
 961 blink::WebGraphicsContext3D*
 962 RendererBlinkPlatformImpl::createOffscreenGraphicsContext3D(
 963     const blink::WebGraphicsContext3D::Attributes& attributes,
 964     blink::WebGraphicsContext3D* share_context,
 965     blink::WebGLInfo* gl_info) {
 966   if (!RenderThreadImpl::current())
 967     return NULL;
 968
 969 #if defined(OS_ANDROID)
 970   if (SynchronousCompositorFactory* factory =
 971       SynchronousCompositorFactory::GetInstance()) {
 972     scoped_ptr<webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl>
 973         in_process_context(
 974             factory->CreateOffscreenGraphicsContext3D(attributes));
 975     if (!in_process_context ||
 976         !in_process_context->InitializeOnCurrentThread())
 977       return NULL;
 978     return in_process_context.release();
 979   }
 980 #endif
 981
 982   scoped_refptr<GpuChannelHost> gpu_channel_host(
 983       RenderThreadImpl::current()->EstablishGpuChannelSync(
 984           CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE));
 985
 986   if (gpu_channel_host.get() && gl_info) {
 987     const gpu::GPUInfo& gpu_info = gpu_channel_host->gpu_info();
 988     gl_info->vendorInfo.assign(blink::WebString::fromUTF8(gpu_info.gl_vendor));
 989     gl_info->rendererInfo.assign(
 990         blink::WebString::fromUTF8(gpu_info.gl_renderer));
 991     gl_info->driverVersion.assign(
 992         blink::WebString::fromUTF8(gpu_info.gl_version));
 993   }
 994
 995   WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits limits;
 996   bool lose_context_when_out_of_memory = false;
 997   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
 998       WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
 999           gpu_channel_host.get(),
1000           attributes,
1001           lose_context_when_out_of_memory,
1002           GURL(attributes.topDocumentURL),
1003           limits,
1004           static_cast<WebGraphicsContext3DCommandBufferImpl*>(share_context)));
1005
1006   // Most likely the GPU process exited and the attempt to reconnect to it
1007   // failed. Need to try to restore the context again later.
1008   if (!context || !context->InitializeOnCurrentThread())
1009       return NULL;
1010   return context.release();
1011 }
1012
1013 //------------------------------------------------------------------------------
1014
1015 blink::WebGraphicsContext3DProvider*
1016 RendererBlinkPlatformImpl::createSharedOffscreenGraphicsContext3DProvider() {
1017   scoped_refptr<webkit::gpu::ContextProviderWebContext> provider =
1018       RenderThreadImpl::current()->SharedMainThreadContextProvider();
1019   if (!provider.get())
1020     return NULL;
1021   return new WebGraphicsContext3DProviderImpl(provider);
1022 }
1023
1024 //------------------------------------------------------------------------------
1025
1026 blink::WebCompositorSupport* RendererBlinkPlatformImpl::compositorSupport() {
1027   return &compositor_support_;
1028 }
1029
1030 //------------------------------------------------------------------------------
1031
1032 blink::WebString RendererBlinkPlatformImpl::convertIDNToUnicode(
1033     const blink::WebString& host,
1034     const blink::WebString& languages) {
1035   return net::IDNToUnicode(host.utf8(), languages.utf8());
1036 }
1037
1038 //------------------------------------------------------------------------------
1039
1040 // static
1041 void RendererBlinkPlatformImpl::SetMockDeviceLightDataForTesting(double data) {
1042   g_test_device_light_data = data;
1043 }
1044
1045 //------------------------------------------------------------------------------
1046
1047 // static
1048 void RendererBlinkPlatformImpl::SetMockDeviceMotionDataForTesting(
1049     const blink::WebDeviceMotionData& data) {
1050   g_test_device_motion_data.Get() = data;
1051 }
1052
1053 //------------------------------------------------------------------------------
1054
1055 // static
1056 void RendererBlinkPlatformImpl::SetMockDeviceOrientationDataForTesting(
1057     const blink::WebDeviceOrientationData& data) {
1058   g_test_device_orientation_data.Get() = data;
1059 }
1060
1061 //------------------------------------------------------------------------------
1062
1063 void RendererBlinkPlatformImpl::vibrate(unsigned int milliseconds) {
1064   RenderThread::Get()->Send(
1065       new ViewHostMsg_Vibrate(base::checked_cast<int64>(milliseconds)));
1066 }
1067
1068 void RendererBlinkPlatformImpl::cancelVibration() {
1069   RenderThread::Get()->Send(new ViewHostMsg_CancelVibration());
1070 }
1071
1072 //------------------------------------------------------------------------------
1073
1074 // static
1075 PlatformEventObserverBase*
1076 RendererBlinkPlatformImpl::CreatePlatformEventObserverFromType(
1077     blink::WebPlatformEventType type) {
1078   RenderThread* thread = RenderThreadImpl::current();
1079
1080   // When running layout tests, those observers should not listen to the actual
1081   // hardware changes. In order to make that happen, they will receive a null
1082   // thread.
1083   if (thread && RenderThreadImpl::current()->layout_test_mode())
1084     thread = NULL;
1085
1086   switch (type) {
1087     case blink::WebPlatformEventDeviceMotion:
1088       return new DeviceMotionEventPump(thread);
1089     case blink::WebPlatformEventDeviceOrientation:
1090       return new DeviceOrientationEventPump(thread);
1091     case blink::WebPlatformEventDeviceLight:
1092       return new DeviceLightEventPump(thread);
1093     case blink::WebPlatformEventGamepad:
1094       return new GamepadSharedMemoryReader(thread);
1095     case blink::WebPlatformEventScreenOrientation:
1096       return new ScreenOrientationObserver();
1097     default:
1098       // A default statement is required to prevent compilation errors when
1099       // Blink adds a new type.
1100       VLOG(1) << "RendererBlinkPlatformImpl::startListening() with "
1101                  "unknown type.";
1102   }
1103
1104   return NULL;
1105 }
1106
1107 void RendererBlinkPlatformImpl::SetPlatformEventObserverForTesting(
1108     blink::WebPlatformEventType type,
1109     scoped_ptr<PlatformEventObserverBase> observer) {
1110   DCHECK(type != blink::WebPlatformEventBattery);
1111
1112   if (platform_event_observers_.Lookup(type))
1113     platform_event_observers_.Remove(type);
1114   platform_event_observers_.AddWithID(observer.release(), type);
1115 }
1116
1117 void RendererBlinkPlatformImpl::startListening(
1118     blink::WebPlatformEventType type,
1119     blink::WebPlatformEventListener* listener) {
1120   if (type == blink::WebPlatformEventBattery) {
1121     if (RenderThreadImpl::current() &&
1122         RenderThreadImpl::current()->layout_test_mode()) {
1123       g_test_battery_status_listener =
1124           static_cast<blink::WebBatteryStatusListener*>(listener);
1125     } else {
1126       battery_status_dispatcher_.reset(new BatteryStatusDispatcher(
1127           static_cast<blink::WebBatteryStatusListener*>(listener)));
1128     }
1129     return;
1130   }
1131
1132   PlatformEventObserverBase* observer = platform_event_observers_.Lookup(type);
1133   if (!observer) {
1134     observer = CreatePlatformEventObserverFromType(type);
1135     if (!observer)
1136       return;
1137     platform_event_observers_.AddWithID(observer, static_cast<int32>(type));
1138   }
1139   observer->Start(listener);
1140
1141   // Device events (motion, orientation and light) expect to get an event fired
1142   // as soon as a listener is registered if a fake data was passed before.
1143   // TODO(mlamouri,timvolodine): make those send mock values directly instead of
1144   // using this broken pattern.
1145   if (RenderThreadImpl::current() &&
1146       RenderThreadImpl::current()->layout_test_mode() &&
1147       (type == blink::WebPlatformEventDeviceMotion ||
1148        type == blink::WebPlatformEventDeviceOrientation ||
1149        type == blink::WebPlatformEventDeviceLight)) {
1150     SendFakeDeviceEventDataForTesting(type);
1151   }
1152 }
1153
1154 void RendererBlinkPlatformImpl::SendFakeDeviceEventDataForTesting(
1155     blink::WebPlatformEventType type) {
1156   PlatformEventObserverBase* observer = platform_event_observers_.Lookup(type);
1157   CHECK(observer);
1158
1159   void* data = 0;
1160
1161   switch (type) {
1162   case blink::WebPlatformEventDeviceMotion:
1163     if (!(g_test_device_motion_data == 0))
1164       data = &g_test_device_motion_data.Get();
1165     break;
1166   case blink::WebPlatformEventDeviceOrientation:
1167     if (!(g_test_device_orientation_data == 0))
1168       data = &g_test_device_orientation_data.Get();
1169     break;
1170   case blink::WebPlatformEventDeviceLight:
1171     if (g_test_device_light_data >= 0)
1172       data = &g_test_device_light_data;
1173     break;
1174   default:
1175     NOTREACHED();
1176     break;
1177   }
1178
1179   if (!data)
1180     return;
1181
1182   base::MessageLoopProxy::current()->PostTask(
1183       FROM_HERE,
1184       base::Bind(&PlatformEventObserverBase::SendFakeDataForTesting,
1185                  base::Unretained(observer), data));
1186 }
1187
1188 void RendererBlinkPlatformImpl::stopListening(
1189     blink::WebPlatformEventType type) {
1190   if (type == blink::WebPlatformEventBattery) {
1191     g_test_battery_status_listener = nullptr;
1192     battery_status_dispatcher_.reset();
1193     return;
1194   }
1195
1196   PlatformEventObserverBase* observer = platform_event_observers_.Lookup(type);
1197   if (!observer)
1198     return;
1199   observer->Stop();
1200 }
1201
1202 //------------------------------------------------------------------------------
1203
1204 void RendererBlinkPlatformImpl::queryStorageUsageAndQuota(
1205     const blink::WebURL& storage_partition,
1206     blink::WebStorageQuotaType type,
1207     blink::WebStorageQuotaCallbacks callbacks) {
1208   if (!thread_safe_sender_.get() || !quota_message_filter_.get())
1209     return;
1210   QuotaDispatcher::ThreadSpecificInstance(thread_safe_sender_.get(),
1211                                           quota_message_filter_.get())
1212       ->QueryStorageUsageAndQuota(
1213           storage_partition,
1214           static_cast<storage::StorageType>(type),
1215           QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks));
1216 }
1217
1218 //------------------------------------------------------------------------------
1219
1220 blink::WebBluetooth* RendererBlinkPlatformImpl::bluetooth() {
1221   return bluetooth_.get();
1222 }
1223
1224 //------------------------------------------------------------------------------
1225
1226 void RendererBlinkPlatformImpl::MockBatteryStatusChangedForTesting(
1227     const blink::WebBatteryStatus& status) {
1228   if (!g_test_battery_status_listener)
1229     return;
1230   g_test_battery_status_listener->updateBatteryStatus(status);
1231 }
1232
1233 }  // namespace content