// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "content/renderer/render_thread_impl.h" #include #include #include #include #include "base/allocator/allocator_extension.h" #include "base/command_line.h" #include "base/lazy_instance.h" #include "base/logging.h" #include "base/memory/discardable_memory.h" #include "base/memory/discardable_memory_emulated.h" #include "base/memory/discardable_memory_shmem_allocator.h" #include "base/memory/shared_memory.h" #include "base/metrics/field_trial.h" #include "base/metrics/histogram.h" #include "base/path_service.h" #include "base/single_thread_task_runner.h" #include "base/strings/string16.h" #include "base/strings/string_number_conversions.h" #include "base/strings/string_tokenizer.h" #include "base/strings/sys_string_conversions.h" #include "base/strings/utf_string_conversions.h" #include "base/threading/thread_local.h" #include "base/threading/thread_restrictions.h" #include "base/trace_event/trace_event.h" #include "base/values.h" #include "cc/base/switches.h" #include "cc/blink/web_external_bitmap_impl.h" #include "cc/blink/web_layer_impl.h" #include "cc/resources/tile_task_worker_pool.h" #include "content/child/appcache/appcache_dispatcher.h" #include "content/child/appcache/appcache_frontend_impl.h" #include "content/child/child_discardable_shared_memory_manager.h" #include "content/child/child_gpu_memory_buffer_manager.h" #include "content/child/child_histogram_message_filter.h" #include "content/child/child_resource_message_filter.h" #include "content/child/child_shared_bitmap_manager.h" #include "content/child/content_child_helpers.h" #include "content/child/db_message_filter.h" #include "content/child/indexed_db/indexed_db_dispatcher.h" #include "content/child/indexed_db/indexed_db_message_filter.h" #include "content/child/npapi/npobject_util.h" #include "content/child/plugin_messages.h" #include "content/child/resource_dispatcher.h" #include "content/child/resource_scheduling_filter.h" #include "content/child/runtime_features.h" #include "content/child/thread_safe_sender.h" #include "content/child/web_database_observer_impl.h" #include "content/child/worker_task_runner.h" #include "content/common/child_process_messages.h" #include "content/common/content_constants_internal.h" #include "content/common/database_messages.h" #include "content/common/dom_storage/dom_storage_messages.h" #include "content/common/frame_messages.h" #include "content/common/gpu/client/context_provider_command_buffer.h" #include "content/common/gpu/client/gpu_channel_host.h" #include "content/common/gpu/gpu_messages.h" #include "content/common/gpu/gpu_process_launch_causes.h" #include "content/common/render_frame_setup.mojom.h" #include "content/common/resource_messages.h" #include "content/common/view_messages.h" #include "content/common/worker_messages.h" #include "content/public/common/content_constants.h" #include "content/public/common/content_paths.h" #include "content/public/common/content_switches.h" #include "content/public/common/mojo_channel_switches.h" #include "content/public/common/renderer_preferences.h" #include "content/public/common/url_constants.h" #include "content/public/renderer/content_renderer_client.h" #include "content/public/renderer/render_process_observer.h" #include "content/public/renderer/render_view_visitor.h" #include "content/renderer/browser_plugin/browser_plugin_manager.h" #include "content/renderer/devtools/devtools_agent_filter.h" #include "content/renderer/devtools/v8_sampling_profiler.h" #include "content/renderer/dom_storage/dom_storage_dispatcher.h" #include "content/renderer/dom_storage/webstoragearea_impl.h" #include "content/renderer/dom_storage/webstoragenamespace_impl.h" #include "content/renderer/gpu/compositor_external_begin_frame_source.h" #include "content/renderer/gpu/compositor_forwarding_message_filter.h" #include "content/renderer/gpu/compositor_output_surface.h" #include "content/renderer/input/input_event_filter.h" #include "content/renderer/input/input_handler_manager.h" #include "content/renderer/input/main_thread_input_event_filter.h" #include "content/renderer/media/aec_dump_message_filter.h" #include "content/renderer/media/audio_input_message_filter.h" #include "content/renderer/media/audio_message_filter.h" #include "content/renderer/media/audio_renderer_mixer_manager.h" #include "content/renderer/media/media_stream_center.h" #include "content/renderer/media/midi_message_filter.h" #include "content/renderer/media/render_media_client.h" #include "content/renderer/media/renderer_gpu_video_accelerator_factories.h" #include "content/renderer/media/video_capture_impl_manager.h" #include "content/renderer/media/video_capture_message_filter.h" #include "content/renderer/net_info_helper.h" #include "content/renderer/p2p/socket_dispatcher.h" #include "content/renderer/render_frame_proxy.h" #include "content/renderer/render_process_impl.h" #include "content/renderer/render_view_impl.h" #include "content/renderer/renderer_blink_platform_impl.h" #include "content/renderer/scheduler/renderer_scheduler.h" #include "content/renderer/scheduler/resource_dispatch_throttler.h" #include "content/renderer/service_worker/embedded_worker_context_message_filter.h" #include "content/renderer/service_worker/embedded_worker_dispatcher.h" #include "content/renderer/shared_worker/embedded_shared_worker_stub.h" #include "gin/public/debug.h" #include "gpu/GLES2/gl2extchromium.h" #include "gpu/command_buffer/common/gles2_cmd_utils.h" #include "ipc/ipc_channel_handle.h" #include "ipc/ipc_platform_file.h" #include "ipc/mojo/ipc_channel_mojo.h" #include "media/base/audio_hardware_config.h" #include "media/base/media.h" #include "media/filters/gpu_video_accelerator_factories.h" #include "mojo/common/common_type_converters.h" #include "net/base/net_errors.h" #include "net/base/net_util.h" #include "skia/ext/event_tracer_impl.h" #include "third_party/WebKit/public/platform/WebString.h" #include "third_party/WebKit/public/platform/WebThread.h" #include "third_party/WebKit/public/web/WebCache.h" #include "third_party/WebKit/public/web/WebColorName.h" #include "third_party/WebKit/public/web/WebDatabase.h" #include "third_party/WebKit/public/web/WebDocument.h" #include "third_party/WebKit/public/web/WebFrame.h" #include "third_party/WebKit/public/web/WebImageCache.h" #include "third_party/WebKit/public/web/WebKit.h" #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h" #include "third_party/WebKit/public/web/WebPopupMenu.h" #include "third_party/WebKit/public/web/WebRuntimeFeatures.h" #include "third_party/WebKit/public/web/WebScriptController.h" #include "third_party/WebKit/public/web/WebSecurityPolicy.h" #include "third_party/WebKit/public/web/WebView.h" #include "third_party/skia/include/core/SkGraphics.h" #include "ui/base/layout.h" #include "ui/base/ui_base_switches.h" #include "v8/include/v8.h" #if defined(OS_ANDROID) #include #include "content/renderer/android/synchronous_compositor_factory.h" #include "content/renderer/media/android/renderer_demuxer_android.h" #endif #if defined(OS_MACOSX) #include "base/mac/mac_util.h" #include "content/renderer/webscrollbarbehavior_impl_mac.h" #endif #if defined(OS_POSIX) #include "ipc/ipc_channel_posix.h" #endif #if defined(OS_WIN) #include #include #else // TODO(port) #include "content/child/npapi/np_channel_base.h" #endif #if defined(ENABLE_PLUGINS) #include "content/renderer/npapi/plugin_channel_host.h" #endif #if defined(ENABLE_WEBRTC) #include "content/renderer/media/peer_connection_tracker.h" #include "content/renderer/media/rtc_peer_connection_handler.h" #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h" #include "content/renderer/media/webrtc_identity_service.h" #endif #ifdef ENABLE_VTUNE_JIT_INTERFACE #include "v8/src/third_party/vtune/v8-vtune.h" #endif using base::ThreadRestrictions; using blink::WebDocument; using blink::WebFrame; using blink::WebNetworkStateNotifier; using blink::WebRuntimeFeatures; using blink::WebScriptController; using blink::WebSecurityPolicy; using blink::WebString; using blink::WebView; namespace content { namespace { const int64 kInitialIdleHandlerDelayMs = 1000; const int64 kLongIdleHandlerDelayMs = 30*1000; #if defined(OS_ANDROID) // On Android, resource messages can each take ~1.5ms to dispatch on the browser // IO thread. Limiting the message rate to 3/frame at 60hz ensures that the // induced work takes but a fraction (~1/4) of the overall frame budget. const int kMaxResourceRequestsPerFlushWhenThrottled = 3; #else const int kMaxResourceRequestsPerFlushWhenThrottled = 8; #endif const double kThrottledResourceRequestFlushPeriodS = 1. / 60.; // Maximum allocation size allowed for image scaling filters that // require pre-scaling. Skia will fallback to a filter that doesn't // require pre-scaling if the default filter would require an // allocation that exceeds this limit. const size_t kImageCacheSingleAllocationByteLimit = 64 * 1024 * 1024; const size_t kEmulatedDiscardableMemoryBytesToKeepWhenWidgetsHidden = 4 * 1024 * 1024; // Keep the global RenderThreadImpl in a TLS slot so it is impossible to access // incorrectly from the wrong thread. base::LazyInstance > lazy_tls = LAZY_INSTANCE_INITIALIZER; class RenderViewZoomer : public RenderViewVisitor { public: RenderViewZoomer(const std::string& scheme, const std::string& host, double zoom_level) : scheme_(scheme), host_(host), zoom_level_(zoom_level) { } bool Visit(RenderView* render_view) override { WebView* webview = render_view->GetWebView(); WebDocument document = webview->mainFrame()->document(); // Don't set zoom level for full-page plugin since they don't use the same // zoom settings. if (document.isPluginDocument()) return true; GURL url(document.url()); // Empty scheme works as wildcard that matches any scheme, if ((net::GetHostOrSpecFromURL(url) == host_) && (scheme_.empty() || scheme_ == url.scheme()) && !static_cast(render_view) ->uses_temporary_zoom_level()) { webview->hidePopups(); webview->setZoomLevel(zoom_level_); } return true; } private: const std::string scheme_; const std::string host_; const double zoom_level_; DISALLOW_COPY_AND_ASSIGN(RenderViewZoomer); }; std::string HostToCustomHistogramSuffix(const std::string& host) { if (host == "mail.google.com") return ".gmail"; if (host == "docs.google.com" || host == "drive.google.com") return ".docs"; if (host == "plus.google.com") return ".plus"; return std::string(); } void* CreateHistogram( const char *name, int min, int max, size_t buckets) { if (min <= 0) min = 1; std::string histogram_name; RenderThreadImpl* render_thread_impl = RenderThreadImpl::current(); if (render_thread_impl) { // Can be null in tests. histogram_name = render_thread_impl-> histogram_customizer()->ConvertToCustomHistogramName(name); } else { histogram_name = std::string(name); } base::HistogramBase* histogram = base::Histogram::FactoryGet( histogram_name, min, max, buckets, base::Histogram::kUmaTargetedHistogramFlag); return histogram; } void AddHistogramSample(void* hist, int sample) { base::Histogram* histogram = static_cast(hist); histogram->Add(sample); } scoped_ptr AllocateSharedBitmapFunction( const gfx::Size& size) { return ChildThreadImpl::current()->shared_bitmap_manager()-> AllocateSharedBitmap(size); } void EnableBlinkPlatformLogChannels(const std::string& channels) { if (channels.empty()) return; base::StringTokenizer t(channels, ", "); while (t.GetNext()) blink::enableLogChannel(t.token().c_str()); } void NotifyTimezoneChangeOnThisThread() { v8::Isolate* isolate = v8::Isolate::GetCurrent(); if (!isolate) return; v8::Date::DateTimeConfigurationChangeNotification(isolate); } void LowMemoryNotificationOnThisThread() { v8::Isolate* isolate = v8::Isolate::GetCurrent(); if (!isolate) return; isolate->LowMemoryNotification(); } class RenderFrameSetupImpl : public mojo::InterfaceImpl { public: RenderFrameSetupImpl() : routing_id_highmark_(-1) { } void ExchangeServiceProviders( int32_t frame_routing_id, mojo::InterfaceRequest services, mojo::ServiceProviderPtr exposed_services) override { // TODO(morrita): This is for investigating http://crbug.com/415059 and // should be removed once it is fixed. CHECK_LT(routing_id_highmark_, frame_routing_id); routing_id_highmark_ = frame_routing_id; RenderFrameImpl* frame = RenderFrameImpl::FromRoutingID(frame_routing_id); // We can receive a GetServiceProviderForFrame message for a frame not yet // created due to a race between the message and a ViewMsg_New IPC that // triggers creation of the RenderFrame we want. if (!frame) { RenderThreadImpl::current()->RegisterPendingRenderFrameConnect( frame_routing_id, services.Pass(), exposed_services.Pass()); return; } frame->BindServiceRegistry(services.Pass(), exposed_services.Pass()); } private: int32_t routing_id_highmark_; }; void CreateRenderFrameSetup(mojo::InterfaceRequest request) { mojo::BindToRequest(new RenderFrameSetupImpl(), &request); } blink::WebGraphicsContext3D::Attributes GetOffscreenAttribs() { blink::WebGraphicsContext3D::Attributes attributes; attributes.shareResources = true; attributes.depth = false; attributes.stencil = false; attributes.antialias = false; attributes.noAutomaticFlushes = true; return attributes; } } // namespace // For measuring memory usage after each task. Behind a command line flag. class MemoryObserver : public base::MessageLoop::TaskObserver { public: MemoryObserver() {} ~MemoryObserver() override {} void WillProcessTask(const base::PendingTask& pending_task) override {} void DidProcessTask(const base::PendingTask& pending_task) override { LOCAL_HISTOGRAM_MEMORY_KB("Memory.RendererUsed", GetMemoryUsageKB()); } private: DISALLOW_COPY_AND_ASSIGN(MemoryObserver); }; RenderThreadImpl::HistogramCustomizer::HistogramCustomizer() { custom_histograms_.insert("V8.MemoryExternalFragmentationTotal"); custom_histograms_.insert("V8.MemoryHeapSampleTotalCommitted"); custom_histograms_.insert("V8.MemoryHeapSampleTotalUsed"); } RenderThreadImpl::HistogramCustomizer::~HistogramCustomizer() {} void RenderThreadImpl::HistogramCustomizer::RenderViewNavigatedToHost( const std::string& host, size_t view_count) { if (base::CommandLine::ForCurrentProcess()->HasSwitch( switches::kDisableHistogramCustomizer)) { return; } // Check if all RenderViews are displaying a page from the same host. If there // is only one RenderView, the common host is this view's host. If there are // many, check if this one shares the common host of the other // RenderViews. It's ok to not detect some cases where the RenderViews share a // common host. This information is only used for producing custom histograms. if (view_count == 1) SetCommonHost(host); else if (host != common_host_) SetCommonHost(std::string()); } std::string RenderThreadImpl::HistogramCustomizer::ConvertToCustomHistogramName( const char* histogram_name) const { std::string name(histogram_name); if (!common_host_histogram_suffix_.empty() && custom_histograms_.find(name) != custom_histograms_.end()) name += common_host_histogram_suffix_; return name; } void RenderThreadImpl::HistogramCustomizer::SetCommonHost( const std::string& host) { if (host != common_host_) { common_host_ = host; common_host_histogram_suffix_ = HostToCustomHistogramSuffix(host); blink::mainThreadIsolate()->SetCreateHistogramFunction(CreateHistogram); } } RenderThreadImpl* RenderThreadImpl::current() { return lazy_tls.Pointer()->Get(); } // When we run plugins in process, we actually run them on the render thread, // which means that we need to make the render thread pump UI events. RenderThreadImpl::RenderThreadImpl() : ChildThreadImpl(Options(ShouldUseMojoChannel())) { Init(); } RenderThreadImpl::RenderThreadImpl(const std::string& channel_name) : ChildThreadImpl(Options(channel_name, ShouldUseMojoChannel())) { Init(); } RenderThreadImpl::RenderThreadImpl( scoped_ptr main_message_loop) : ChildThreadImpl(Options(ShouldUseMojoChannel())), main_message_loop_(main_message_loop.Pass()) { Init(); } void RenderThreadImpl::Init() { TRACE_EVENT_BEGIN_ETW("RenderThreadImpl::Init", 0, ""); base::trace_event::TraceLog::GetInstance()->SetThreadSortIndex( base::PlatformThread::CurrentId(), kTraceEventRendererMainThreadSortIndex); #if defined(OS_MACOSX) || defined(OS_ANDROID) // On Mac and Android, the select popups are rendered by the browser. blink::WebView::setUseExternalPopupMenus(true); #endif lazy_tls.Pointer()->Set(this); // Register this object as the main thread. ChildProcess::current()->set_main_thread(this); // In single process the single process is all there is. suspend_webkit_shared_timer_ = true; notify_webkit_of_modal_loop_ = true; webkit_shared_timer_suspended_ = false; widget_count_ = 0; hidden_widget_count_ = 0; idle_notification_delay_in_ms_ = kInitialIdleHandlerDelayMs; idle_notifications_to_skip_ = 0; layout_test_mode_ = false; appcache_dispatcher_.reset( new AppCacheDispatcher(Get(), new AppCacheFrontendImpl())); dom_storage_dispatcher_.reset(new DomStorageDispatcher()); main_thread_indexed_db_dispatcher_.reset(new IndexedDBDispatcher( thread_safe_sender())); renderer_scheduler_ = RendererScheduler::Create(); channel()->SetListenerTaskRunner(renderer_scheduler_->DefaultTaskRunner()); embedded_worker_dispatcher_.reset(new EmbeddedWorkerDispatcher()); // Note: This may reorder messages from the ResourceDispatcher with respect to // other subsystems. resource_dispatch_throttler_.reset(new ResourceDispatchThrottler( static_cast(this), renderer_scheduler_.get(), base::TimeDelta::FromSecondsD(kThrottledResourceRequestFlushPeriodS), kMaxResourceRequestsPerFlushWhenThrottled)); resource_dispatcher()->set_message_sender(resource_dispatch_throttler_.get()); media_stream_center_ = NULL; db_message_filter_ = new DBMessageFilter(); AddFilter(db_message_filter_.get()); vc_manager_.reset(new VideoCaptureImplManager()); AddFilter(vc_manager_->video_capture_message_filter()); browser_plugin_manager_.reset(new BrowserPluginManager()); AddObserver(browser_plugin_manager_.get()); #if defined(ENABLE_WEBRTC) peer_connection_tracker_.reset(new PeerConnectionTracker()); AddObserver(peer_connection_tracker_.get()); p2p_socket_dispatcher_ = new P2PSocketDispatcher(GetIOMessageLoopProxy().get()); AddFilter(p2p_socket_dispatcher_.get()); webrtc_identity_service_.reset(new WebRTCIdentityService()); aec_dump_message_filter_ = new AecDumpMessageFilter(GetIOMessageLoopProxy(), message_loop()->message_loop_proxy()); AddFilter(aec_dump_message_filter_.get()); peer_connection_factory_.reset(new PeerConnectionDependencyFactory( p2p_socket_dispatcher_.get())); #endif // defined(ENABLE_WEBRTC) audio_input_message_filter_ = new AudioInputMessageFilter(GetIOMessageLoopProxy()); AddFilter(audio_input_message_filter_.get()); audio_message_filter_ = new AudioMessageFilter(GetIOMessageLoopProxy()); AddFilter(audio_message_filter_.get()); midi_message_filter_ = new MidiMessageFilter(GetIOMessageLoopProxy()); AddFilter(midi_message_filter_.get()); AddFilter((new IndexedDBMessageFilter(thread_safe_sender()))->GetFilter()); AddFilter((new EmbeddedWorkerContextMessageFilter())->GetFilter()); GetContentClient()->renderer()->RenderThreadStarted(); InitSkiaEventTracer(); const base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess(); is_impl_side_painting_enabled_ = !command_line.HasSwitch(switches::kDisableImplSidePainting); cc_blink::WebLayerImpl::SetImplSidePaintingEnabled( is_impl_side_painting_enabled_); is_zero_copy_enabled_ = command_line.HasSwitch(switches::kEnableZeroCopy); is_one_copy_enabled_ = !command_line.HasSwitch(switches::kDisableOneCopy); #if defined(OS_MACOSX) && !defined(OS_IOS) is_elastic_overscroll_enabled_ = !base::CommandLine::ForCurrentProcess()->HasSwitch( switches::kDisableThreadedEventHandlingMac) && base::mac::IsOSLionOrLater(); if (is_elastic_overscroll_enabled_) { base::ScopedCFTypeRef key( base::SysUTF8ToCFStringRef("NSScrollViewRubberbanding")); Boolean key_exists = false; Boolean value = CFPreferencesGetAppBooleanValue( key, kCFPreferencesCurrentApplication, &key_exists); if (key_exists && !value) is_elastic_overscroll_enabled_ = false; } #else is_elastic_overscroll_enabled_ = false; #endif use_image_texture_target_ = GL_TEXTURE_2D; if (command_line.HasSwitch(switches::kUseImageTextureTarget)) { std::string target_string = command_line.GetSwitchValueASCII(switches::kUseImageTextureTarget); const unsigned targets[] = { GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_EXTERNAL_OES }; for (auto target : targets) { if (target_string == gpu::gles2::GLES2Util::GetStringEnum(target)) use_image_texture_target_ = target; } } if (command_line.HasSwitch(switches::kDisableLCDText)) { is_lcd_text_enabled_ = false; } else if (command_line.HasSwitch(switches::kEnableLCDText)) { is_lcd_text_enabled_ = true; } else { #if defined(OS_ANDROID) is_lcd_text_enabled_ = false; #else is_lcd_text_enabled_ = true; #endif } is_gpu_rasterization_enabled_ = command_line.HasSwitch(switches::kEnableGpuRasterization); is_gpu_rasterization_forced_ = command_line.HasSwitch(switches::kForceGpuRasterization); if (command_line.HasSwitch(switches::kGpuRasterizationMSAASampleCount)) { std::string string_value = command_line.GetSwitchValueASCII( switches::kGpuRasterizationMSAASampleCount); bool parsed_msaa_sample_count = base::StringToInt(string_value, &gpu_rasterization_msaa_sample_count_); DCHECK(parsed_msaa_sample_count) << string_value; DCHECK_GE(gpu_rasterization_msaa_sample_count_, 0); } else { gpu_rasterization_msaa_sample_count_ = 0; } is_threaded_gpu_rasterization_enabled_ = command_line.HasSwitch(switches::kEnableThreadedGpuRasterization); if (command_line.HasSwitch(switches::kDisableDistanceFieldText)) { is_distance_field_text_enabled_ = false; } else if (command_line.HasSwitch(switches::kEnableDistanceFieldText)) { is_distance_field_text_enabled_ = true; } else { is_distance_field_text_enabled_ = false; } // Note that under Linux, the media library will normally already have // been initialized by the Zygote before this instance became a Renderer. base::FilePath media_path; PathService::Get(DIR_MEDIA_LIBS, &media_path); if (!media_path.empty()) media::InitializeMediaLibrary(media_path); memory_pressure_listener_.reset(new base::MemoryPressureListener( base::Bind(&RenderThreadImpl::OnMemoryPressure, base::Unretained(this)))); std::vector supported_types; base::DiscardableMemory::GetSupportedTypes(&supported_types); DCHECK(!supported_types.empty()); // The default preferred type is always the first one in list. base::DiscardableMemoryType type = supported_types[0]; if (command_line.HasSwitch(switches::kUseDiscardableMemory)) { std::string requested_type_name = command_line.GetSwitchValueASCII( switches::kUseDiscardableMemory); base::DiscardableMemoryType requested_type = base::DiscardableMemory::GetNamedType(requested_type_name); if (std::find(supported_types.begin(), supported_types.end(), requested_type) != supported_types.end()) { type = requested_type; } else { LOG(ERROR) << "Requested discardable memory type is not supported."; } } base::DiscardableMemory::SetPreferredType(type); if (is_impl_side_painting_enabled_) { int num_raster_threads = 0; std::string string_value = command_line.GetSwitchValueASCII(switches::kNumRasterThreads); bool parsed_num_raster_threads = base::StringToInt(string_value, &num_raster_threads); DCHECK(parsed_num_raster_threads) << string_value; DCHECK_GT(num_raster_threads, 0); // Force maximum 1 thread for threaded GPU rasterization. if (is_threaded_gpu_rasterization_enabled_) num_raster_threads = 1; cc::TileTaskWorkerPool::SetNumWorkerThreads(num_raster_threads); #if defined(OS_ANDROID) || defined(OS_LINUX) if (!command_line.HasSwitch( switches::kUseNormalPriorityForTileTaskWorkerThreads)) { cc::TileTaskWorkerPool::SetWorkerThreadPriority( base::kThreadPriority_Background); } #endif } base::DiscardableMemoryShmemAllocator::SetInstance( ChildThreadImpl::discardable_shared_memory_manager()); service_registry()->AddService( base::Bind(CreateRenderFrameSetup)); TRACE_EVENT_END_ETW("RenderThreadImpl::Init", 0, ""); } RenderThreadImpl::~RenderThreadImpl() { } void RenderThreadImpl::Shutdown() { FOR_EACH_OBSERVER( RenderProcessObserver, observers_, OnRenderProcessShutdown()); ChildThreadImpl::Shutdown(); if (memory_observer_) { message_loop()->RemoveTaskObserver(memory_observer_.get()); memory_observer_.reset(); } // Wait for all databases to be closed. if (blink_platform_impl_) { // WaitForAllDatabasesToClose might run a nested message loop. To avoid // processing timer events while we're already in the process of shutting // down blink, put a ScopePageLoadDeferrer on the stack. WebView::willEnterModalLoop(); blink_platform_impl_->web_database_observer_impl() ->WaitForAllDatabasesToClose(); WebView::didExitModalLoop(); } // Shutdown in reverse of the initialization order. if (devtools_agent_message_filter_.get()) { RemoveFilter(devtools_agent_message_filter_.get()); devtools_agent_message_filter_ = NULL; } RemoveFilter(audio_input_message_filter_.get()); audio_input_message_filter_ = NULL; #if defined(ENABLE_WEBRTC) RTCPeerConnectionHandler::DestructAllHandlers(); // |peer_connection_factory_| cannot be deleted until after the main message // loop has been destroyed. This is because there may be pending tasks that // hold on to objects produced by the PC factory that depend on threads owned // by the PC factory. Once those tasks have been freed, the factory can be // deleted. #endif RemoveFilter(vc_manager_->video_capture_message_filter()); vc_manager_.reset(); RemoveFilter(db_message_filter_.get()); db_message_filter_ = NULL; // Shutdown the file thread if it's running. if (file_thread_) file_thread_->Stop(); if (compositor_message_filter_.get()) { RemoveFilter(compositor_message_filter_.get()); compositor_message_filter_ = NULL; } media_thread_.reset(); // AudioMessageFilter may be accessed on |media_thread_|, so shutdown after. RemoveFilter(audio_message_filter_.get()); audio_message_filter_ = NULL; compositor_thread_.reset(); main_input_callback_.Cancel(); input_handler_manager_.reset(); if (input_event_filter_.get()) { RemoveFilter(input_event_filter_.get()); input_event_filter_ = NULL; } // RemoveEmbeddedWorkerRoute may be called while deleting // EmbeddedWorkerDispatcher. So it must be deleted before deleting // RenderThreadImpl. embedded_worker_dispatcher_.reset(); // Ramp down IDB before we ramp down WebKit (and V8), since IDB classes might // hold pointers to V8 objects (e.g., via pending requests). main_thread_indexed_db_dispatcher_.reset(); main_thread_compositor_task_runner_ = NULL; if (gpu_channel_.get()) gpu_channel_->DestroyChannel(); // TODO(port) #if defined(OS_WIN) // Clean up plugin channels before this thread goes away. NPChannelBase::CleanupChannels(); #endif // Shut down the message loop before shutting down Blink. // This prevents a scenario where a pending task in the message loop accesses // Blink objects after Blink shuts down. // This must be at the very end of the shutdown sequence. You must not touch // the message loop after this. main_message_loop_.reset(); if (blink_platform_impl_) blink::shutdown(); lazy_tls.Pointer()->Set(NULL); } bool RenderThreadImpl::Send(IPC::Message* msg) { // Certain synchronous messages cannot always be processed synchronously by // the browser, e.g., putting up UI and waiting for the user. This could cause // a complete hang of Chrome if a windowed plug-in is trying to communicate // with the renderer thread since the browser's UI thread could be stuck // (within a Windows API call) trying to synchronously communicate with the // plug-in. The remedy is to pump messages on this thread while the browser // is processing this request. This creates an opportunity for re-entrancy // into WebKit, so we need to take care to disable callbacks, timers, and // pending network loads that could trigger such callbacks. bool pumping_events = false; if (msg->is_sync()) { if (msg->is_caller_pumping_messages()) { pumping_events = true; } } bool suspend_webkit_shared_timer = true; // default value std::swap(suspend_webkit_shared_timer, suspend_webkit_shared_timer_); bool notify_webkit_of_modal_loop = true; // default value std::swap(notify_webkit_of_modal_loop, notify_webkit_of_modal_loop_); #if defined(ENABLE_PLUGINS) int render_view_id = MSG_ROUTING_NONE; #endif if (pumping_events) { if (suspend_webkit_shared_timer) blink_platform_impl_->SuspendSharedTimer(); if (notify_webkit_of_modal_loop) WebView::willEnterModalLoop(); #if defined(ENABLE_PLUGINS) RenderViewImpl* render_view = RenderViewImpl::FromRoutingID(msg->routing_id()); if (render_view) { render_view_id = msg->routing_id(); PluginChannelHost::Broadcast( new PluginMsg_SignalModalDialogEvent(render_view_id)); } #endif } bool rv = ChildThreadImpl::Send(msg); if (pumping_events) { #if defined(ENABLE_PLUGINS) if (render_view_id != MSG_ROUTING_NONE) { PluginChannelHost::Broadcast( new PluginMsg_ResetModalDialogEvent(render_view_id)); } #endif if (notify_webkit_of_modal_loop) WebView::didExitModalLoop(); if (suspend_webkit_shared_timer) blink_platform_impl_->ResumeSharedTimer(); } return rv; } scoped_refptr RenderThreadImpl::GetTaskRunner() { return GetRendererScheduler()->DefaultTaskRunner(); } IPC::SyncChannel* RenderThreadImpl::GetChannel() { return channel(); } std::string RenderThreadImpl::GetLocale() { // The browser process should have passed the locale to the renderer via the // --lang command line flag. const base::CommandLine& parsed_command_line = *base::CommandLine::ForCurrentProcess(); const std::string& lang = parsed_command_line.GetSwitchValueASCII(switches::kLang); DCHECK(!lang.empty()); return lang; } IPC::SyncMessageFilter* RenderThreadImpl::GetSyncMessageFilter() { return sync_message_filter(); } scoped_refptr RenderThreadImpl::GetIOMessageLoopProxy() { return ChildProcess::current()->io_message_loop_proxy(); } void RenderThreadImpl::AddRoute(int32 routing_id, IPC::Listener* listener) { ChildThreadImpl::GetRouter()->AddRoute(routing_id, listener); PendingRenderFrameConnectMap::iterator it = pending_render_frame_connects_.find(routing_id); if (it == pending_render_frame_connects_.end()) return; RenderFrameImpl* frame = RenderFrameImpl::FromRoutingID(routing_id); if (!frame) return; scoped_refptr connection(it->second); mojo::InterfaceRequest services( connection->services.Pass()); mojo::ServiceProviderPtr exposed_services( connection->exposed_services.Pass()); pending_render_frame_connects_.erase(it); frame->BindServiceRegistry(services.Pass(), exposed_services.Pass()); } void RenderThreadImpl::RemoveRoute(int32 routing_id) { ChildThreadImpl::GetRouter()->RemoveRoute(routing_id); } void RenderThreadImpl::AddEmbeddedWorkerRoute(int32 routing_id, IPC::Listener* listener) { AddRoute(routing_id, listener); if (devtools_agent_message_filter_.get()) { devtools_agent_message_filter_->AddEmbeddedWorkerRouteOnMainThread( routing_id); } } void RenderThreadImpl::RemoveEmbeddedWorkerRoute(int32 routing_id) { RemoveRoute(routing_id); if (devtools_agent_message_filter_.get()) { devtools_agent_message_filter_->RemoveEmbeddedWorkerRouteOnMainThread( routing_id); } } void RenderThreadImpl::RegisterPendingRenderFrameConnect( int routing_id, mojo::InterfaceRequest services, mojo::ServiceProviderPtr exposed_services) { std::pair result = pending_render_frame_connects_.insert(std::make_pair( routing_id, make_scoped_refptr(new PendingRenderFrameConnect( services.Pass(), exposed_services.Pass())))); CHECK(result.second) << "Inserting a duplicate item."; } int RenderThreadImpl::GenerateRoutingID() { int routing_id = MSG_ROUTING_NONE; Send(new ViewHostMsg_GenerateRoutingID(&routing_id)); return routing_id; } void RenderThreadImpl::AddFilter(IPC::MessageFilter* filter) { channel()->AddFilter(filter); } void RenderThreadImpl::RemoveFilter(IPC::MessageFilter* filter) { channel()->RemoveFilter(filter); } void RenderThreadImpl::AddObserver(RenderProcessObserver* observer) { observers_.AddObserver(observer); } void RenderThreadImpl::RemoveObserver(RenderProcessObserver* observer) { observers_.RemoveObserver(observer); } void RenderThreadImpl::SetResourceDispatcherDelegate( ResourceDispatcherDelegate* delegate) { resource_dispatcher()->set_delegate(delegate); } void RenderThreadImpl::SetResourceDispatchTaskQueue( const scoped_refptr& resource_task_queue) { // Add a filter that forces resource messages to be dispatched via a // particular task runner. resource_scheduling_filter_ = new ResourceSchedulingFilter(resource_task_queue, resource_dispatcher()); channel()->AddFilter(resource_scheduling_filter_.get()); // The ChildResourceMessageFilter and the ResourceDispatcher need to use the // same queue to ensure tasks are executed in the expected order. child_resource_message_filter()->SetMainThreadTaskRunner(resource_task_queue); resource_dispatcher()->SetMainThreadTaskRunner(resource_task_queue); } void RenderThreadImpl::EnsureWebKitInitialized() { if (blink_platform_impl_) return; const base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess(); #ifdef ENABLE_VTUNE_JIT_INTERFACE if (command_line.HasSwitch(switches::kEnableVtune)) gin::Debug::SetJitCodeEventHandler(vTune::GetVtuneCodeEventHandler()); #endif SetRuntimeFeaturesDefaultsAndUpdateFromArgs(command_line); blink_platform_impl_.reset( new RendererBlinkPlatformImpl(renderer_scheduler_.get())); blink::initialize(blink_platform_impl_.get()); v8::Isolate* isolate = blink::mainThreadIsolate(); isolate->SetCreateHistogramFunction(CreateHistogram); isolate->SetAddHistogramSampleFunction(AddHistogramSample); main_thread_compositor_task_runner_ = renderer_scheduler_->CompositorTaskRunner(); main_input_callback_.Reset( base::Bind(base::IgnoreResult(&RenderThreadImpl::OnMessageReceived), base::Unretained(this))); SetResourceDispatchTaskQueue(renderer_scheduler_->LoadingTaskRunner()); bool enable = !command_line.HasSwitch(switches::kDisableThreadedCompositing); if (enable) { #if defined(OS_ANDROID) if (SynchronousCompositorFactory* factory = SynchronousCompositorFactory::GetInstance()) compositor_message_loop_proxy_ = factory->GetCompositorMessageLoop(); #endif if (!compositor_message_loop_proxy_.get()) { compositor_thread_.reset(new base::Thread("Compositor")); compositor_thread_->Start(); #if defined(OS_ANDROID) compositor_thread_->SetPriority(base::kThreadPriority_Display); #endif compositor_message_loop_proxy_ = compositor_thread_->message_loop_proxy(); compositor_message_loop_proxy_->PostTask( FROM_HERE, base::Bind(base::IgnoreResult(&ThreadRestrictions::SetIOAllowed), false)); } InputHandlerManagerClient* input_handler_manager_client = NULL; #if defined(OS_ANDROID) if (SynchronousCompositorFactory* factory = SynchronousCompositorFactory::GetInstance()) { input_handler_manager_client = factory->GetInputHandlerManagerClient(); } #endif if (!input_handler_manager_client) { scoped_refptr compositor_input_event_filter( new InputEventFilter(main_input_callback_.callback(), main_thread_compositor_task_runner_, compositor_message_loop_proxy_)); input_handler_manager_client = compositor_input_event_filter.get(); input_event_filter_ = compositor_input_event_filter; } input_handler_manager_.reset(new InputHandlerManager( compositor_message_loop_proxy_, input_handler_manager_client, renderer_scheduler_.get())); } if (!input_event_filter_.get()) { // Always provide an input event filter implementation to ensure consistent // input event scheduling and prioritization. // TODO(jdduke): Merge InputEventFilter, InputHandlerManager and // MainThreadInputEventFilter, crbug.com/436057. input_event_filter_ = new MainThreadInputEventFilter( main_input_callback_.callback(), main_thread_compositor_task_runner_); } AddFilter(input_event_filter_.get()); scoped_refptr compositor_impl_side_loop; if (enable) compositor_impl_side_loop = compositor_message_loop_proxy_; else compositor_impl_side_loop = base::MessageLoopProxy::current(); compositor_message_filter_ = new CompositorForwardingMessageFilter( compositor_impl_side_loop.get()); AddFilter(compositor_message_filter_.get()); RenderThreadImpl::RegisterSchemes(); EnableBlinkPlatformLogChannels( command_line.GetSwitchValueASCII(switches::kBlinkPlatformLogChannels)); if (!media::IsMediaLibraryInitialized()) { WebRuntimeFeatures::enableWebAudio(false); } RenderMediaClient::Initialize(); FOR_EACH_OBSERVER(RenderProcessObserver, observers_, WebKitInitialized()); devtools_agent_message_filter_ = new DevToolsAgentFilter(); AddFilter(devtools_agent_message_filter_.get()); v8_sampling_profiler_.reset(new V8SamplingProfiler()); if (GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) ScheduleIdleHandler(kLongIdleHandlerDelayMs); cc_blink::SetSharedBitmapAllocationFunction(AllocateSharedBitmapFunction); // Limit use of the scaled image cache to when deferred image decoding is // enabled. if (!command_line.HasSwitch(switches::kEnableDeferredImageDecoding) && !is_impl_side_painting_enabled_) SkGraphics::SetResourceCacheTotalByteLimit(0u); SkGraphics::SetResourceCacheSingleAllocationByteLimit( kImageCacheSingleAllocationByteLimit); if (command_line.HasSwitch(switches::kMemoryMetrics)) { memory_observer_.reset(new MemoryObserver()); message_loop()->AddTaskObserver(memory_observer_.get()); } } void RenderThreadImpl::RegisterSchemes() { // swappedout: pages should not be accessible, and should also // be treated as empty documents that can commit synchronously. WebString swappedout_scheme(base::ASCIIToUTF16(kSwappedOutScheme)); WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(swappedout_scheme); WebSecurityPolicy::registerURLSchemeAsEmptyDocument(swappedout_scheme); } void RenderThreadImpl::NotifyTimezoneChange() { NotifyTimezoneChangeOnThisThread(); RenderThread::Get()->PostTaskToAllWebWorkers( base::Bind(&NotifyTimezoneChangeOnThisThread)); } void RenderThreadImpl::RecordAction(const base::UserMetricsAction& action) { Send(new ViewHostMsg_UserMetricsRecordAction(action.str_)); } void RenderThreadImpl::RecordComputedAction(const std::string& action) { Send(new ViewHostMsg_UserMetricsRecordAction(action)); } scoped_ptr RenderThreadImpl::HostAllocateSharedMemoryBuffer(size_t size) { return ChildThreadImpl::AllocateSharedMemory(size, thread_safe_sender()); } cc::SharedBitmapManager* RenderThreadImpl::GetSharedBitmapManager() { return shared_bitmap_manager(); } void RenderThreadImpl::RegisterExtension(v8::Extension* extension) { WebScriptController::registerExtension(extension); } void RenderThreadImpl::ScheduleIdleHandler(int64 initial_delay_ms) { idle_notification_delay_in_ms_ = initial_delay_ms; idle_timer_.Stop(); idle_timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(initial_delay_ms), this, &RenderThreadImpl::IdleHandler); } void RenderThreadImpl::IdleHandler() { bool run_in_foreground_tab = (widget_count_ > hidden_widget_count_) && GetContentClient()->renderer()-> RunIdleHandlerWhenWidgetsHidden(); if (run_in_foreground_tab) { if (idle_notifications_to_skip_ > 0) { --idle_notifications_to_skip_; } else { base::allocator::ReleaseFreeMemory(); base::DiscardableMemory::ReduceMemoryUsage(); } ScheduleIdleHandler(kLongIdleHandlerDelayMs); return; } base::allocator::ReleaseFreeMemory(); discardable_shared_memory_manager()->ReleaseFreeMemory(); // Continue the idle timer if the webkit shared timer is not suspended or // something is left to do. bool continue_timer = !webkit_shared_timer_suspended_; if (blink::mainThreadIsolate() && !blink::mainThreadIsolate()->IdleNotification(1000)) { continue_timer = true; } if (!base::DiscardableMemory::ReduceMemoryUsage()) { continue_timer = true; } // Schedule next invocation. When the tab is originally hidden, an invocation // is scheduled for kInitialIdleHandlerDelayMs in // RenderThreadImpl::WidgetHidden in order to race to a minimal heap. // After that, idle calls can be much less frequent, so run at a maximum of // once every kLongIdleHandlerDelayMs. // Dampen the delay using the algorithm (if delay is in seconds): // delay = delay + 1 / (delay + 2) // Using floor(delay) has a dampening effect such as: // 30s, 30, 30, 31, 31, 31, 31, 32, 32, ... // If the delay is in milliseconds, the above formula is equivalent to: // delay_ms / 1000 = delay_ms / 1000 + 1 / (delay_ms / 1000 + 2) // which is equivalent to // delay_ms = delay_ms + 1000*1000 / (delay_ms + 2000). if (continue_timer) { ScheduleIdleHandler( std::max(kLongIdleHandlerDelayMs, idle_notification_delay_in_ms_ + 1000000 / (idle_notification_delay_in_ms_ + 2000))); } else { idle_timer_.Stop(); } FOR_EACH_OBSERVER(RenderProcessObserver, observers_, IdleNotification()); } int64 RenderThreadImpl::GetIdleNotificationDelayInMs() const { return idle_notification_delay_in_ms_; } void RenderThreadImpl::SetIdleNotificationDelayInMs( int64 idle_notification_delay_in_ms) { idle_notification_delay_in_ms_ = idle_notification_delay_in_ms; } void RenderThreadImpl::UpdateHistograms(int sequence_number) { child_histogram_message_filter()->SendHistograms(sequence_number); } int RenderThreadImpl::PostTaskToAllWebWorkers(const base::Closure& closure) { return WorkerTaskRunner::Instance()->PostTaskToAllThreads(closure); } bool RenderThreadImpl::ResolveProxy(const GURL& url, std::string* proxy_list) { bool result = false; Send(new ViewHostMsg_ResolveProxy(url, &result, proxy_list)); return result; } void RenderThreadImpl::PostponeIdleNotification() { idle_notifications_to_skip_ = 2; } scoped_refptr RenderThreadImpl::GetGpuFactories() { DCHECK(IsMainThread()); scoped_refptr gpu_channel_host = GetGpuChannel(); const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess(); scoped_refptr gpu_factories; scoped_refptr media_task_runner = GetMediaThreadTaskRunner(); if (!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode)) { if (!gpu_va_context_provider_.get() || gpu_va_context_provider_->DestroyedOnMainThread()) { if (!gpu_channel_host.get()) { gpu_channel_host = EstablishGpuChannelSync( CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE); } blink::WebGraphicsContext3D::Attributes attributes; bool lose_context_when_out_of_memory = false; gpu_va_context_provider_ = ContextProviderCommandBuffer::Create( make_scoped_ptr( WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext( gpu_channel_host.get(), attributes, lose_context_when_out_of_memory, GURL("chrome://gpu/RenderThreadImpl::GetGpuVDAContext3D"), WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits(), NULL)), "GPU-VideoAccelerator-Offscreen"); } } if (gpu_va_context_provider_.get()) { gpu_factories = RendererGpuVideoAcceleratorFactories::Create( gpu_channel_host.get(), media_task_runner, gpu_va_context_provider_); } return gpu_factories; } scoped_ptr RenderThreadImpl::CreateOffscreenContext3d() { blink::WebGraphicsContext3D::Attributes attributes(GetOffscreenAttribs()); bool lose_context_when_out_of_memory = true; scoped_refptr gpu_channel_host(EstablishGpuChannelSync( CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE)); return make_scoped_ptr( WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext( gpu_channel_host.get(), attributes, lose_context_when_out_of_memory, GURL("chrome://gpu/RenderThreadImpl::CreateOffscreenContext3d"), WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits(), NULL)); } scoped_refptr RenderThreadImpl::SharedMainThreadContextProvider() { DCHECK(IsMainThread()); if (!shared_main_thread_contexts_.get() || shared_main_thread_contexts_->DestroyedOnMainThread()) { shared_main_thread_contexts_ = NULL; #if defined(OS_ANDROID) if (SynchronousCompositorFactory* factory = SynchronousCompositorFactory::GetInstance()) { shared_main_thread_contexts_ = factory->CreateOffscreenContextProvider( GetOffscreenAttribs(), "Offscreen-MainThread"); } #endif if (!shared_main_thread_contexts_.get()) { shared_main_thread_contexts_ = ContextProviderCommandBuffer::Create( CreateOffscreenContext3d(), "Offscreen-MainThread"); } if (shared_main_thread_contexts_.get() && !shared_main_thread_contexts_->BindToCurrentThread()) shared_main_thread_contexts_ = NULL; } return shared_main_thread_contexts_; } AudioRendererMixerManager* RenderThreadImpl::GetAudioRendererMixerManager() { if (!audio_renderer_mixer_manager_) { audio_renderer_mixer_manager_.reset(new AudioRendererMixerManager( GetAudioHardwareConfig())); } return audio_renderer_mixer_manager_.get(); } media::AudioHardwareConfig* RenderThreadImpl::GetAudioHardwareConfig() { if (!audio_hardware_config_) { media::AudioParameters input_params; media::AudioParameters output_params; Send(new ViewHostMsg_GetAudioHardwareConfig( &input_params, &output_params)); audio_hardware_config_.reset(new media::AudioHardwareConfig( input_params, output_params)); audio_message_filter_->SetAudioHardwareConfig(audio_hardware_config_.get()); } return audio_hardware_config_.get(); } base::WaitableEvent* RenderThreadImpl::GetShutdownEvent() { return ChildProcess::current()->GetShutDownEvent(); } #if defined(OS_WIN) void RenderThreadImpl::PreCacheFontCharacters(const LOGFONT& log_font, const base::string16& str) { Send(new ViewHostMsg_PreCacheFontCharacters(log_font, str)); } #endif // OS_WIN ServiceRegistry* RenderThreadImpl::GetServiceRegistry() { return service_registry(); } bool RenderThreadImpl::IsImplSidePaintingEnabled() { return is_impl_side_painting_enabled_; } bool RenderThreadImpl::IsGpuRasterizationForced() { return is_gpu_rasterization_forced_; } bool RenderThreadImpl::IsGpuRasterizationEnabled() { return is_gpu_rasterization_enabled_; } bool RenderThreadImpl::IsThreadedGpuRasterizationEnabled() { return is_threaded_gpu_rasterization_enabled_; } int RenderThreadImpl::GetGpuRasterizationMSAASampleCount() { return gpu_rasterization_msaa_sample_count_; } bool RenderThreadImpl::IsLcdTextEnabled() { return is_lcd_text_enabled_; } bool RenderThreadImpl::IsDistanceFieldTextEnabled() { return is_distance_field_text_enabled_; } bool RenderThreadImpl::IsZeroCopyEnabled() { return is_zero_copy_enabled_; } bool RenderThreadImpl::IsOneCopyEnabled() { return is_one_copy_enabled_; } bool RenderThreadImpl::IsElasticOverscrollEnabled() { return is_elastic_overscroll_enabled_; } bool RenderThreadImpl::UseSingleThreadScheduler() { base::CommandLine* cmd = base::CommandLine::ForCurrentProcess(); return !cmd->HasSwitch(switches::kDisableSingleThreadProxyScheduler); } uint32 RenderThreadImpl::GetImageTextureTarget() { return use_image_texture_target_; } scoped_refptr RenderThreadImpl::GetCompositorMainThreadTaskRunner() { return main_thread_compositor_task_runner_; } scoped_refptr RenderThreadImpl::GetCompositorImplThreadTaskRunner() { return compositor_message_loop_proxy_; } gpu::GpuMemoryBufferManager* RenderThreadImpl::GetGpuMemoryBufferManager() { return gpu_memory_buffer_manager(); } RendererScheduler* RenderThreadImpl::GetRendererScheduler() { return renderer_scheduler_.get(); } cc::ContextProvider* RenderThreadImpl::GetSharedMainThreadContextProvider() { return SharedMainThreadContextProvider().get(); } scoped_ptr RenderThreadImpl::CreateExternalBeginFrameSource(int routing_id) { #if defined(OS_ANDROID) if (SynchronousCompositorFactory* factory = SynchronousCompositorFactory::GetInstance()) { return factory->CreateExternalBeginFrameSource(routing_id); } #endif return make_scoped_ptr(new CompositorExternalBeginFrameSource( compositor_message_filter_.get(), sync_message_filter(), routing_id)); } bool RenderThreadImpl::IsMainThread() { return !!current(); } base::MessageLoop* RenderThreadImpl::GetMainLoop() { return message_loop(); } scoped_refptr RenderThreadImpl::GetIOLoopProxy() { return io_message_loop_proxy_; } scoped_ptr RenderThreadImpl::AllocateSharedMemory( size_t size) { return scoped_ptr( HostAllocateSharedMemoryBuffer(size)); } CreateCommandBufferResult RenderThreadImpl::CreateViewCommandBuffer( int32 surface_id, const GPUCreateCommandBufferConfig& init_params, int32 route_id) { TRACE_EVENT1("gpu", "RenderThreadImpl::CreateViewCommandBuffer", "surface_id", surface_id); CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED; IPC::Message* message = new GpuHostMsg_CreateViewCommandBuffer( surface_id, init_params, route_id, &result); // Allow calling this from the compositor thread. thread_safe_sender()->Send(message); return result; } void RenderThreadImpl::DoNotSuspendWebKitSharedTimer() { suspend_webkit_shared_timer_ = false; } void RenderThreadImpl::DoNotNotifyWebKitOfModalLoop() { notify_webkit_of_modal_loop_ = false; } bool RenderThreadImpl::OnControlMessageReceived(const IPC::Message& msg) { ObserverListBase::Iterator it(observers_); RenderProcessObserver* observer; while ((observer = it.GetNext()) != NULL) { if (observer->OnControlMessageReceived(msg)) return true; } // Some messages are handled by delegates. if (appcache_dispatcher_->OnMessageReceived(msg) || dom_storage_dispatcher_->OnMessageReceived(msg) || embedded_worker_dispatcher_->OnMessageReceived(msg)) { return true; } bool handled = true; IPC_BEGIN_MESSAGE_MAP(RenderThreadImpl, msg) IPC_MESSAGE_HANDLER(FrameMsg_NewFrame, OnCreateNewFrame) IPC_MESSAGE_HANDLER(FrameMsg_NewFrameProxy, OnCreateNewFrameProxy) IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForCurrentURL, OnSetZoomLevelForCurrentURL) // TODO(port): removed from render_messages_internal.h; // is there a new non-windows message I should add here? IPC_MESSAGE_HANDLER(ViewMsg_New, OnCreateNewView) IPC_MESSAGE_HANDLER(ViewMsg_NetworkTypeChanged, OnNetworkTypeChanged) IPC_MESSAGE_HANDLER(ViewMsg_TempCrashWithData, OnTempCrashWithData) IPC_MESSAGE_HANDLER(WorkerProcessMsg_CreateWorker, OnCreateNewSharedWorker) IPC_MESSAGE_HANDLER(ViewMsg_TimezoneChange, OnUpdateTimezone) #if defined(OS_ANDROID) IPC_MESSAGE_HANDLER(ViewMsg_SetWebKitSharedTimersSuspended, OnSetWebKitSharedTimersSuspended) #endif #if defined(OS_MACOSX) IPC_MESSAGE_HANDLER(ViewMsg_UpdateScrollbarTheme, OnUpdateScrollbarTheme) #endif #if defined(ENABLE_PLUGINS) IPC_MESSAGE_HANDLER(ViewMsg_PurgePluginListCache, OnPurgePluginListCache) #endif IPC_MESSAGE_UNHANDLED(handled = false) IPC_END_MESSAGE_MAP() return handled; } void RenderThreadImpl::OnCreateNewFrame( int routing_id, int parent_routing_id, int proxy_routing_id, const FrameReplicationState& replicated_state, FrameMsg_NewFrame_WidgetParams params) { CompositorDependencies* compositor_deps = this; RenderFrameImpl::CreateFrame(routing_id, parent_routing_id, proxy_routing_id, replicated_state, compositor_deps, params); } void RenderThreadImpl::OnCreateNewFrameProxy( int routing_id, int parent_routing_id, int render_view_routing_id, const FrameReplicationState& replicated_state) { RenderFrameProxy::CreateFrameProxy(routing_id, parent_routing_id, render_view_routing_id, replicated_state); } void RenderThreadImpl::OnSetZoomLevelForCurrentURL(const std::string& scheme, const std::string& host, double zoom_level) { RenderViewZoomer zoomer(scheme, host, zoom_level); RenderView::ForEach(&zoomer); } void RenderThreadImpl::OnCreateNewView(const ViewMsg_New_Params& params) { EnsureWebKitInitialized(); CompositorDependencies* compositor_deps = this; // When bringing in render_view, also bring in webkit's glue and jsbindings. RenderViewImpl::Create(params, compositor_deps, false); } GpuChannelHost* RenderThreadImpl::EstablishGpuChannelSync( CauseForGpuLaunch cause_for_gpu_launch) { TRACE_EVENT0("gpu", "RenderThreadImpl::EstablishGpuChannelSync"); if (gpu_channel_.get()) { // Do nothing if we already have a GPU channel or are already // establishing one. if (!gpu_channel_->IsLost()) return gpu_channel_.get(); // Recreate the channel if it has been lost. gpu_channel_ = NULL; } // Ask the browser for the channel name. int client_id = 0; IPC::ChannelHandle channel_handle; gpu::GPUInfo gpu_info; if (!Send(new GpuHostMsg_EstablishGpuChannel(cause_for_gpu_launch, &client_id, &channel_handle, &gpu_info)) || #if defined(OS_POSIX) channel_handle.socket.fd == -1 || #endif channel_handle.name.empty()) { // Otherwise cancel the connection. return NULL; } GetContentClient()->SetGpuInfo(gpu_info); // Cache some variables that are needed on the compositor thread for our // implementation of GpuChannelHostFactory. io_message_loop_proxy_ = ChildProcess::current()->io_message_loop_proxy(); gpu_channel_ = GpuChannelHost::Create(this, gpu_info, channel_handle, ChildProcess::current()->GetShutDownEvent(), gpu_memory_buffer_manager()); return gpu_channel_.get(); } blink::WebMediaStreamCenter* RenderThreadImpl::CreateMediaStreamCenter( blink::WebMediaStreamCenterClient* client) { #if defined(OS_ANDROID) if (base::CommandLine::ForCurrentProcess()->HasSwitch( switches::kDisableWebRTC)) return NULL; #endif #if defined(ENABLE_WEBRTC) if (!media_stream_center_) { media_stream_center_ = GetContentClient()->renderer() ->OverrideCreateWebMediaStreamCenter(client); if (!media_stream_center_) { scoped_ptr media_stream_center( new MediaStreamCenter(client, GetPeerConnectionDependencyFactory())); media_stream_center_ = media_stream_center.release(); } } #endif return media_stream_center_; } #if defined(ENABLE_WEBRTC) PeerConnectionDependencyFactory* RenderThreadImpl::GetPeerConnectionDependencyFactory() { return peer_connection_factory_.get(); } #endif GpuChannelHost* RenderThreadImpl::GetGpuChannel() { if (!gpu_channel_.get()) return NULL; if (gpu_channel_->IsLost()) return NULL; return gpu_channel_.get(); } #if defined(ENABLE_PLUGINS) void RenderThreadImpl::OnPurgePluginListCache(bool reload_pages) { EnsureWebKitInitialized(); // The call below will cause a GetPlugins call with refresh=true, but at this // point we already know that the browser has refreshed its list, so disable // refresh temporarily to prevent each renderer process causing the list to be // regenerated. blink_platform_impl_->set_plugin_refresh_allowed(false); blink::resetPluginCache(reload_pages); blink_platform_impl_->set_plugin_refresh_allowed(true); FOR_EACH_OBSERVER(RenderProcessObserver, observers_, PluginListChanged()); } #endif void RenderThreadImpl::OnNetworkTypeChanged( net::NetworkChangeNotifier::ConnectionType type) { EnsureWebKitInitialized(); bool online = type != net::NetworkChangeNotifier::CONNECTION_NONE; WebNetworkStateNotifier::setOnLine(online); FOR_EACH_OBSERVER( RenderProcessObserver, observers_, NetworkStateChanged(online)); WebNetworkStateNotifier::setWebConnectionType( NetConnectionTypeToWebConnectionType(type)); } void RenderThreadImpl::OnTempCrashWithData(const GURL& data) { GetContentClient()->SetActiveURL(data); CHECK(false); } void RenderThreadImpl::OnUpdateTimezone() { if (!blink_platform_impl_) return; NotifyTimezoneChange(); } #if defined(OS_ANDROID) void RenderThreadImpl::OnSetWebKitSharedTimersSuspended(bool suspend) { if (suspend_webkit_shared_timer_) { EnsureWebKitInitialized(); if (suspend) { blink_platform_impl_->SuspendSharedTimer(); } else { blink_platform_impl_->ResumeSharedTimer(); } webkit_shared_timer_suspended_ = suspend; } } #endif #if defined(OS_MACOSX) void RenderThreadImpl::OnUpdateScrollbarTheme( float initial_button_delay, float autoscroll_button_delay, bool jump_on_track_click, blink::ScrollerStyle preferred_scroller_style, bool redraw) { EnsureWebKitInitialized(); static_cast( blink_platform_impl_->scrollbarBehavior()) ->set_jump_on_track_click(jump_on_track_click); blink::WebScrollbarTheme::updateScrollbars(initial_button_delay, autoscroll_button_delay, preferred_scroller_style, redraw); } #endif void RenderThreadImpl::OnCreateNewSharedWorker( const WorkerProcessMsg_CreateWorker_Params& params) { // EmbeddedSharedWorkerStub will self-destruct. new EmbeddedSharedWorkerStub(params.url, params.name, params.content_security_policy, params.security_policy_type, params.pause_on_start, params.route_id); } void RenderThreadImpl::OnMemoryPressure( base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) { base::allocator::ReleaseFreeMemory(); // Do not call into blink if it is not initialized. if (blink_platform_impl_) { blink::WebCache::pruneAll(); if (blink::mainThreadIsolate()) { // Trigger full v8 garbage collection on memory pressure notifications. // This will potentially hang the renderer for a long time, however, when // we receive a memory pressure notification, we might be about to be // killed. blink::mainThreadIsolate()->LowMemoryNotification(); RenderThread::Get()->PostTaskToAllWebWorkers( base::Bind(&LowMemoryNotificationOnThisThread)); } if (memory_pressure_level == base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL) { // Clear the image cache. blink::WebImageCache::clear(); // Purge Skia font cache, by setting it to 0 and then again to the // previous limit. size_t font_cache_limit = SkGraphics::SetFontCacheLimit(0); SkGraphics::SetFontCacheLimit(font_cache_limit); } } } scoped_refptr RenderThreadImpl::GetFileThreadMessageLoopProxy() { DCHECK(message_loop() == base::MessageLoop::current()); if (!file_thread_) { file_thread_.reset(new base::Thread("Renderer::FILE")); file_thread_->Start(); } return file_thread_->message_loop_proxy(); } scoped_refptr RenderThreadImpl::GetMediaThreadTaskRunner() { DCHECK(message_loop() == base::MessageLoop::current()); if (!media_thread_) { media_thread_.reset(new base::Thread("Media")); media_thread_->Start(); #if defined(OS_ANDROID) renderer_demuxer_ = new RendererDemuxerAndroid(); AddFilter(renderer_demuxer_.get()); #endif } return media_thread_->message_loop_proxy(); } void RenderThreadImpl::SampleGamepads(blink::WebGamepads* data) { blink_platform_impl_->sampleGamepads(*data); } void RenderThreadImpl::WidgetCreated() { widget_count_++; } void RenderThreadImpl::WidgetDestroyed() { widget_count_--; } void RenderThreadImpl::WidgetHidden() { DCHECK_LT(hidden_widget_count_, widget_count_); hidden_widget_count_++; if (widget_count_ && hidden_widget_count_ == widget_count_) { // TODO(reveman): Remove this when we have a better mechanism to prevent // total discardable memory used by all renderers from growing too large. base::internal::DiscardableMemoryEmulated:: ReduceMemoryUsageUntilWithinLimit( kEmulatedDiscardableMemoryBytesToKeepWhenWidgetsHidden); if (GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) ScheduleIdleHandler(kInitialIdleHandlerDelayMs); } } void RenderThreadImpl::WidgetRestored() { DCHECK_GT(hidden_widget_count_, 0); hidden_widget_count_--; if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) { return; } ScheduleIdleHandler(kLongIdleHandlerDelayMs); } RenderThreadImpl::PendingRenderFrameConnect::PendingRenderFrameConnect( mojo::InterfaceRequest services, mojo::ServiceProviderPtr exposed_services) : services(services.Pass()), exposed_services(exposed_services.Pass()) { } RenderThreadImpl::PendingRenderFrameConnect::~PendingRenderFrameConnect() { } } // namespace content