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chromium / chromium / src / 67.0.3392.0 / . / content / renderer / render_thread_impl.cc
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// 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 <algorithm>
#include <limits>
#include <map>
#include <utility>
#include <vector>
#include "base/allocator/allocator_extension.h"
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/discardable_memory_allocator.h"
#include "base/memory/memory_coordinator_client_registry.h"
#include "base/memory/ptr_util.h"
#include "base/memory/shared_memory.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/path_service.h"
#include "base/process/process_metrics.h"
#include "base/run_loop.h"
#include "base/strings/string16.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/simple_thread.h"
#include "base/threading/thread_local.h"
#include "base/threading/thread_restrictions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/trace_event.h"
#include "base/values.h"
#include "build/build_config.h"
#include "cc/base/histograms.h"
#include "cc/base/switches.h"
#include "cc/blink/web_layer_impl.h"
#include "cc/raster/task_graph_runner.h"
#include "cc/trees/layer_tree_frame_sink.h"
#include "cc/trees/layer_tree_host_common.h"
#include "cc/trees/layer_tree_settings.h"
#include "components/discardable_memory/client/client_discardable_shared_memory_manager.h"
#include "components/metrics/public/interfaces/single_sample_metrics.mojom.h"
#include "components/metrics/single_sample_metrics.h"
#include "components/viz/client/client_layer_tree_frame_sink.h"
#include "components/viz/client/client_shared_bitmap_manager.h"
#include "components/viz/client/hit_test_data_provider.h"
#include "components/viz/client/hit_test_data_provider_draw_quad.h"
#include "components/viz/client/hit_test_data_provider_surface_layer.h"
#include "components/viz/client/local_surface_id_provider.h"
#include "components/viz/common/features.h"
#include "components/viz/common/frame_sinks/copy_output_request.h"
#include "content/child/memory/child_memory_coordinator_impl.h"
#include "content/child/runtime_features.h"
#include "content/child/thread_safe_sender.h"
#include "content/common/buildflags.h"
#include "content/common/content_constants_internal.h"
#include "content/common/dom_storage/dom_storage_messages.h"
#include "content/common/frame_messages.h"
#include "content/common/frame_owner_properties.h"
#include "content/common/gpu_stream_constants.h"
#include "content/common/view_messages.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/renderer_preferences.h"
#include "content/public/common/resource_usage_reporter.mojom.h"
#include "content/public/common/resource_usage_reporter_type_converters.h"
#include "content/public/common/service_manager_connection.h"
#include "content/public/common/service_names.mojom.h"
#include "content/public/common/simple_connection_filter.h"
#include "content/public/common/url_constants.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/public/renderer/render_thread_observer.h"
#include "content/public/renderer/render_view_visitor.h"
#include "content/renderer/appcache/appcache_dispatcher.h"
#include "content/renderer/appcache/appcache_frontend_impl.h"
#include "content/renderer/browser_plugin/browser_plugin_manager.h"
#include "content/renderer/categorized_worker_pool.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/effective_connection_type_helper.h"
#include "content/renderer/fileapi/file_system_dispatcher.h"
#include "content/renderer/fileapi/webfilesystem_impl.h"
#include "content/renderer/gpu/frame_swap_message_queue.h"
#include "content/renderer/indexed_db/indexed_db_dispatcher.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/input/widget_input_handler_manager.h"
#include "content/renderer/loader/resource_dispatcher.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/gpu/gpu_video_accelerator_factories_impl.h"
#include "content/renderer/media/midi/midi_message_filter.h"
#include "content/renderer/media/render_media_client.h"
#include "content/renderer/media/stream/media_stream_center.h"
#include "content/renderer/media/video_capture_impl_manager.h"
#include "content/renderer/mus/render_widget_window_tree_client_factory.h"
#include "content/renderer/mus/renderer_window_tree_client.h"
#include "content/renderer/net_info_helper.h"
#include "content/renderer/notifications/notification_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/service_worker/embedded_worker_instance_client_impl.h"
#include "content/renderer/service_worker/service_worker_context_client.h"
#include "content/renderer/service_worker/service_worker_message_filter.h"
#include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
#include "content/renderer/shared_worker/shared_worker_factory_impl.h"
#include "content/renderer/web_database_observer_impl.h"
#include "content/renderer/worker_thread_registry.h"
#include "device/gamepad/public/cpp/gamepads.h"
#include "gin/public/debug.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/client/raster_interface.h"
#include "gpu/command_buffer/client/shared_memory_limits.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/ipc/client/command_buffer_proxy_impl.h"
#include "gpu/ipc/client/gpu_channel_host.h"
#include "ipc/ipc_channel_handle.h"
#include "ipc/ipc_channel_mojo.h"
#include "ipc/ipc_platform_file.h"
#include "media/base/media.h"
#include "media/base/media_switches.h"
#include "media/media_buildflags.h"
#include "media/video/gpu_video_accelerator_factories.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
#include "mojo/public/cpp/system/message_pipe.h"
#include "net/base/net_errors.h"
#include "net/base/port_util.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "net/base/url_util.h"
#include "ppapi/buildflags/buildflags.h"
#include "services/metrics/public/cpp/mojo_ukm_recorder.h"
#include "services/service_manager/public/cpp/connector.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "services/ui/public/cpp/gpu/context_provider_command_buffer.h"
#include "services/ui/public/cpp/gpu/gpu.h"
#include "services/ui/public/interfaces/constants.mojom.h"
#include "skia/ext/event_tracer_impl.h"
#include "skia/ext/skia_memory_dump_provider.h"
#include "third_party/blink/public/platform/scheduler/child/webthread_base.h"
#include "third_party/blink/public/platform/scheduler/web_main_thread_scheduler.h"
#include "third_party/blink/public/platform/web_cache.h"
#include "third_party/blink/public/platform/web_image_generator.h"
#include "third_party/blink/public/platform/web_memory_coordinator.h"
#include "third_party/blink/public/platform/web_network_state_notifier.h"
#include "third_party/blink/public/platform/web_runtime_features.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_thread.h"
#include "third_party/blink/public/web/blink.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_frame.h"
#include "third_party/blink/public/web/web_script_controller.h"
#include "third_party/blink/public/web/web_security_policy.h"
#include "third_party/blink/public/web/web_view.h"
#include "third_party/boringssl/src/include/openssl/evp.h"
#include "third_party/skia/include/core/SkGraphics.h"
#include "ui/base/layout.h"
#include "ui/base/ui_base_features.h"
#include "ui/base/ui_base_switches.h"
#include "ui/display/display_switches.h"
#include "ui/gl/gl_switches.h"
#if BUILDFLAG(ENABLE_WEBRTC)
#include "content/renderer/p2p/socket_dispatcher.h"
#endif
#if defined(OS_ANDROID)
#include <cpu-features.h>
#include "content/renderer/android/synchronous_compositor_filter.h"
#include "content/renderer/android/synchronous_compositor_proxy.h"
#include "content/renderer/android/synchronous_layer_tree_frame_sink.h"
#include "content/renderer/media/android/stream_texture_factory.h"
#include "media/base/android/media_codec_util.h"
#endif
#if defined(OS_MACOSX)
#include "base/mac/mac_util.h"
#include "content/renderer/theme_helper_mac.h"
#include "content/renderer/webscrollbarbehavior_impl_mac.h"
#endif
#if defined(OS_WIN)
#include <windows.h>
#include <objbase.h>
#endif
#if BUILDFLAG(ENABLE_WEBRTC)
#include "content/renderer/media/stream/aec_dump_message_filter.h"
#include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
#include "content/renderer/media/webrtc/peer_connection_tracker.h"
#include "content/renderer/media/webrtc/rtc_peer_connection_handler.h"
#endif
#ifdef ENABLE_VTUNE_JIT_INTERFACE
#include "v8/src/third_party/vtune/v8-vtune.h"
#endif
#if defined(ENABLE_IPC_FUZZER)
#include "content/common/external_ipc_dumper.h"
#endif
#if defined(OS_MACOSX)
#include <malloc/malloc.h>
#else
#include <malloc.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_t kInitialIdleHandlerDelayMs = 1000;
const int64_t kLongIdleHandlerDelayMs = 30 * 1000;
// 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;
#if defined(OS_ANDROID)
// Unique identifier for each output surface created.
uint32_t g_next_layer_tree_frame_sink_id = 1;
#endif
// An implementation of mojom::RenderMessageFilter which can be mocked out
// for tests which may indirectly send messages over this interface.
mojom::RenderMessageFilter* g_render_message_filter_for_testing;
// An implementation of RendererBlinkPlatformImpl which can be mocked out
// for tests.
RendererBlinkPlatformImpl* g_current_blink_platform_impl_for_testing;
// Keep the global RenderThreadImpl in a TLS slot so it is impossible to access
// incorrectly from the wrong thread.
base::LazyInstance<base::ThreadLocalPointer<RenderThreadImpl>>::DestructorAtExit
lazy_tls = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<scoped_refptr<base::SingleThreadTaskRunner>>::
DestructorAtExit g_main_task_runner = LAZY_INSTANCE_INITIALIZER;
// v8::MemoryPressureLevel should correspond to base::MemoryPressureListener.
static_assert(static_cast<v8::MemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE) ==
v8::MemoryPressureLevel::kNone, "none level not align");
static_assert(static_cast<v8::MemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE) ==
v8::MemoryPressureLevel::kModerate, "moderate level not align");
static_assert(static_cast<v8::MemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL) ==
v8::MemoryPressureLevel::kCritical, "critical level not align");
// WebMemoryPressureLevel should correspond to base::MemoryPressureListener.
static_assert(static_cast<blink::WebMemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE) ==
blink::kWebMemoryPressureLevelNone,
"blink::WebMemoryPressureLevelNone not align");
static_assert(
static_cast<blink::WebMemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE) ==
blink::kWebMemoryPressureLevelModerate,
"blink::WebMemoryPressureLevelModerate not align");
static_assert(
static_cast<blink::WebMemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL) ==
blink::kWebMemoryPressureLevelCritical,
"blink::WebMemoryPressureLevelCritical not align");
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<base::Histogram*>(hist);
histogram->Add(sample);
}
class FrameFactoryImpl : public mojom::FrameFactory {
public:
explicit FrameFactoryImpl(const service_manager::BindSourceInfo& source_info)
: source_info_(source_info), routing_id_highmark_(-1) {}
private:
// mojom::FrameFactory:
void CreateFrame(int32_t frame_routing_id,
mojom::FrameRequest frame_request) 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
// mojom::Renderer::CreateView IPC that triggers creation of the RenderFrame
// we want.
if (!frame) {
RenderThreadImpl::current()->RegisterPendingFrameCreate(
source_info_, frame_routing_id, std::move(frame_request));
return;
}
frame->BindFrame(source_info_, std::move(frame_request));
}
private:
service_manager::BindSourceInfo source_info_;
int32_t routing_id_highmark_;
};
void CreateFrameFactory(mojom::FrameFactoryRequest request,
const service_manager::BindSourceInfo& source_info) {
mojo::MakeStrongBinding(std::make_unique<FrameFactoryImpl>(source_info),
std::move(request));
}
scoped_refptr<ui::ContextProviderCommandBuffer> CreateOffscreenContext(
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
const gpu::SharedMemoryLimits& limits,
bool support_locking,
bool support_gles2_interface,
bool support_raster_interface,
bool support_oop_rasterization,
bool support_grcontext,
ui::command_buffer_metrics::ContextType type,
int32_t stream_id,
gpu::SchedulingPriority stream_priority) {
DCHECK(gpu_channel_host);
// This is used to create a few different offscreen contexts:
// - The shared main thread context, used by blink for 2D Canvas.
// - The compositor worker context, used for GPU raster.
// - The media context, used for accelerated video decoding.
// This is for an offscreen context, so the default framebuffer doesn't need
// alpha, depth, stencil, antialiasing.
gpu::ContextCreationAttribs attributes;
attributes.alpha_size = -1;
attributes.depth_size = 0;
attributes.stencil_size = 0;
attributes.samples = 0;
attributes.sample_buffers = 0;
attributes.bind_generates_resource = false;
attributes.lose_context_when_out_of_memory = true;
attributes.enable_gles2_interface = support_gles2_interface;
attributes.enable_raster_interface = support_raster_interface;
attributes.enable_oop_rasterization = support_oop_rasterization;
bool enable_raster_decoder =
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableRasterDecoder);
// --enable-raster-decoder supports raster interface, but not
// gles2 interface
attributes.enable_raster_decoder = enable_raster_decoder &&
support_raster_interface &&
!support_gles2_interface;
const bool automatic_flushes = false;
return base::MakeRefCounted<ui::ContextProviderCommandBuffer>(
std::move(gpu_channel_host), gpu_memory_buffer_manager, stream_id,
stream_priority, gpu::kNullSurfaceHandle,
GURL("chrome://gpu/RenderThreadImpl::CreateOffscreenContext/" +
ui::command_buffer_metrics::ContextTypeToString(type)),
automatic_flushes, support_locking, support_grcontext, limits, attributes,
nullptr /* share_context */, type);
}
// Hook that allows single-sample metric code from //components/metrics to
// connect from the renderer process to the browser process.
void CreateSingleSampleMetricsProvider(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
service_manager::Connector* connector,
metrics::mojom::SingleSampleMetricsProviderRequest request) {
if (task_runner->BelongsToCurrentThread()) {
connector->BindInterface(mojom::kBrowserServiceName, std::move(request));
return;
}
task_runner->PostTask(
FROM_HERE,
base::BindOnce(&CreateSingleSampleMetricsProvider, std::move(task_runner),
connector, std::move(request)));
}
class RendererLocalSurfaceIdProvider : public viz::LocalSurfaceIdProvider {
public:
const viz::LocalSurfaceId& GetLocalSurfaceIdForFrame(
const viz::CompositorFrame& frame) override {
auto new_surface_properties =
RenderWidgetSurfaceProperties::FromCompositorFrame(frame);
if (!local_surface_id_.is_valid() ||
new_surface_properties != surface_properties_) {
local_surface_id_ = parent_local_surface_id_allocator_.GenerateId();
surface_properties_ = new_surface_properties;
}
return local_surface_id_;
}
private:
viz::ParentLocalSurfaceIdAllocator parent_local_surface_id_allocator_;
viz::LocalSurfaceId local_surface_id_;
RenderWidgetSurfaceProperties surface_properties_;
};
// This factory is used to defer binding of the InterfacePtr to the compositor
// thread.
class UkmRecorderFactoryImpl : public cc::UkmRecorderFactory {
public:
explicit UkmRecorderFactoryImpl(
std::unique_ptr<service_manager::Connector> connector)
: connector_(std::move(connector)) {
DCHECK(connector_);
}
~UkmRecorderFactoryImpl() override = default;
std::unique_ptr<ukm::UkmRecorder> CreateRecorder() override {
return ukm::MojoUkmRecorder::Create(connector_.get());
}
private:
std::unique_ptr<service_manager::Connector> connector_;
};
static const int kWaitForWorkersStatsTimeoutMS = 20;
class ResourceUsageReporterImpl : public content::mojom::ResourceUsageReporter {
public:
explicit ResourceUsageReporterImpl(base::WeakPtr<RenderThread> thread)
: workers_to_go_(0), thread_(thread), weak_factory_(this) {}
~ResourceUsageReporterImpl() override {}
private:
static void CollectOnWorkerThread(
const scoped_refptr<base::TaskRunner>& master,
base::WeakPtr<ResourceUsageReporterImpl> impl) {
size_t total_bytes = 0;
size_t used_bytes = 0;
v8::Isolate* isolate = v8::Isolate::GetCurrent();
if (isolate) {
v8::HeapStatistics heap_stats;
isolate->GetHeapStatistics(&heap_stats);
total_bytes = heap_stats.total_heap_size();
used_bytes = heap_stats.used_heap_size();
}
master->PostTask(FROM_HERE,
base::BindOnce(&ResourceUsageReporterImpl::ReceiveStats,
impl, total_bytes, used_bytes));
}
void ReceiveStats(size_t total_bytes, size_t used_bytes) {
usage_data_->v8_bytes_allocated += total_bytes;
usage_data_->v8_bytes_used += used_bytes;
workers_to_go_--;
if (!workers_to_go_)
SendResults();
}
void SendResults() {
if (!callback_.is_null())
std::move(callback_).Run(std::move(usage_data_));
callback_.Reset();
weak_factory_.InvalidateWeakPtrs();
workers_to_go_ = 0;
}
void GetUsageData(GetUsageDataCallback callback) override {
DCHECK(callback_.is_null());
weak_factory_.InvalidateWeakPtrs();
usage_data_ = mojom::ResourceUsageData::New();
usage_data_->reports_v8_stats = true;
callback_ = std::move(callback);
// Since it is not safe to call any Blink or V8 functions until Blink has
// been initialized (which also initializes V8), early out and send 0 back
// for all resources.
if (!thread_) {
SendResults();
return;
}
blink::WebCache::ResourceTypeStats stats;
blink::WebCache::GetResourceTypeStats(&stats);
usage_data_->web_cache_stats = mojom::ResourceTypeStats::From(stats);
v8::Isolate* isolate = v8::Isolate::GetCurrent();
if (isolate) {
v8::HeapStatistics heap_stats;
isolate->GetHeapStatistics(&heap_stats);
usage_data_->v8_bytes_allocated = heap_stats.total_heap_size();
usage_data_->v8_bytes_used = heap_stats.used_heap_size();
}
base::RepeatingClosure collect = base::BindRepeating(
&ResourceUsageReporterImpl::CollectOnWorkerThread,
base::ThreadTaskRunnerHandle::Get(), weak_factory_.GetWeakPtr());
workers_to_go_ =
RenderThread::Get()->PostTaskToAllWebWorkers(std::move(collect));
if (workers_to_go_) {
// The guard task to send out partial stats
// in case some workers are not responsive.
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&ResourceUsageReporterImpl::SendResults,
weak_factory_.GetWeakPtr()),
base::TimeDelta::FromMilliseconds(kWaitForWorkersStatsTimeoutMS));
} else {
// No worker threads so just send out the main thread data right away.
SendResults();
}
}
mojom::ResourceUsageDataPtr usage_data_;
GetUsageDataCallback callback_;
int workers_to_go_;
base::WeakPtr<RenderThread> thread_;
base::WeakPtrFactory<ResourceUsageReporterImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(ResourceUsageReporterImpl);
};
void CreateResourceUsageReporter(base::WeakPtr<RenderThread> thread,
mojom::ResourceUsageReporterRequest request) {
mojo::MakeStrongBinding(std::make_unique<ResourceUsageReporterImpl>(thread),
std::move(request));
}
} // namespace
RenderThreadImpl::HistogramCustomizer::HistogramCustomizer() {
custom_histograms_.insert("V8.MemoryExternalFragmentationTotal");
custom_histograms_.insert("V8.MemoryHeapSampleTotalCommitted");
custom_histograms_.insert("V8.MemoryHeapSampleTotalUsed");
custom_histograms_.insert("V8.MemoryHeapUsed");
custom_histograms_.insert("V8.MemoryHeapCommitted");
}
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);
}
}
std::string RenderThreadImpl::HistogramCustomizer::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";
if (host == "inbox.google.com")
return ".inbox";
if (host == "calendar.google.com")
return ".calendar";
if (host == "www.youtube.com")
return ".youtube";
if (IsAlexaTop10NonGoogleSite(host))
return ".top10";
return std::string();
}
bool RenderThreadImpl::HistogramCustomizer::IsAlexaTop10NonGoogleSite(
const std::string& host) {
// The Top10 sites have different TLD and/or subdomains depending on the
// localization.
if (host == "sina.com.cn")
return true;
std::string sanitized_host =
net::registry_controlled_domains::GetDomainAndRegistry(
host, net::registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES);
if (sanitized_host == "facebook.com")
return true;
if (sanitized_host == "baidu.com")
return true;
if (sanitized_host == "qq.com")
return true;
if (sanitized_host == "twitter.com")
return true;
if (sanitized_host == "taobao.com")
return true;
if (sanitized_host == "live.com")
return true;
if (!sanitized_host.empty()) {
std::vector<base::StringPiece> host_tokens = base::SplitStringPiece(
sanitized_host, ".", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
if (host_tokens.size() >= 2) {
if ((host_tokens[0] == "yahoo") || (host_tokens[0] == "amazon") ||
(host_tokens[0] == "wikipedia")) {
return true;
}
}
}
return false;
}
// static
RenderThreadImpl* RenderThreadImpl::Create(
const InProcessChildThreadParams& params,
base::MessageLoop* unowned_message_loop) {
TRACE_EVENT0("startup", "RenderThreadImpl::Create");
std::unique_ptr<blink::scheduler::WebMainThreadScheduler>
main_thread_scheduler =
blink::scheduler::WebMainThreadScheduler::Create();
scoped_refptr<base::SingleThreadTaskRunner> test_task_counter;
return new RenderThreadImpl(params, std::move(main_thread_scheduler),
test_task_counter, unowned_message_loop);
}
// static
RenderThreadImpl* RenderThreadImpl::Create(
std::unique_ptr<base::MessageLoop> main_message_loop,
std::unique_ptr<blink::scheduler::WebMainThreadScheduler>
main_thread_scheduler) {
TRACE_EVENT0("startup", "RenderThreadImpl::Create");
return new RenderThreadImpl(std::move(main_message_loop),
std::move(main_thread_scheduler));
}
// static
RenderThreadImpl* RenderThreadImpl::current() {
return lazy_tls.Pointer()->Get();
}
// static
mojom::RenderMessageFilter* RenderThreadImpl::current_render_message_filter() {
if (g_render_message_filter_for_testing)
return g_render_message_filter_for_testing;
DCHECK(current());
return current()->render_message_filter();
}
// static
RendererBlinkPlatformImpl* RenderThreadImpl::current_blink_platform_impl() {
if (g_current_blink_platform_impl_for_testing)
return g_current_blink_platform_impl_for_testing;
DCHECK(current());
return current()->blink_platform_impl();
}
// static
void RenderThreadImpl::SetRenderMessageFilterForTesting(
mojom::RenderMessageFilter* render_message_filter) {
g_render_message_filter_for_testing = render_message_filter;
}
// static
void RenderThreadImpl::SetRendererBlinkPlatformImplForTesting(
RendererBlinkPlatformImpl* blink_platform_impl) {
g_current_blink_platform_impl_for_testing = blink_platform_impl;
}
// static
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::DeprecatedGetMainTaskRunner() {
return g_main_task_runner.Get();
}
// In single-process mode used for debugging, we don't pass a renderer client
// ID via command line because RenderThreadImpl lives in the same process as
// the browser
RenderThreadImpl::RenderThreadImpl(
const InProcessChildThreadParams& params,
std::unique_ptr<blink::scheduler::WebMainThreadScheduler> scheduler,
const scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue,
base::MessageLoop* unowned_message_loop)
: ChildThreadImpl(
Options::Builder()
.InBrowserProcess(params)
.AutoStartServiceManagerConnection(false)
.ConnectToBrowser(true)
.IPCTaskRunner(scheduler ? scheduler->IPCTaskRunner() : nullptr)
.Build()),
main_thread_scheduler_(std::move(scheduler)),
main_message_loop_(unowned_message_loop),
categorized_worker_pool_(new CategorizedWorkerPool()),
renderer_binding_(this),
client_id_(1),
compositing_mode_watcher_binding_(this),
weak_factory_(this) {
Init(resource_task_queue);
}
// 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(
std::unique_ptr<base::MessageLoop> owned_message_loop,
std::unique_ptr<blink::scheduler::WebMainThreadScheduler> scheduler)
: ChildThreadImpl(
Options::Builder()
.AutoStartServiceManagerConnection(false)
.ConnectToBrowser(true)
.IPCTaskRunner(scheduler ? scheduler->IPCTaskRunner() : nullptr)
.Build()),
main_thread_scheduler_(std::move(scheduler)),
owned_message_loop_(std::move(owned_message_loop)),
main_message_loop_(owned_message_loop_.get()),
categorized_worker_pool_(new CategorizedWorkerPool()),
is_scroll_animator_enabled_(false),
renderer_binding_(this),
compositing_mode_watcher_binding_(this),
weak_factory_(this) {
scoped_refptr<base::SingleThreadTaskRunner> test_task_counter;
DCHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kRendererClientId));
base::StringToInt(base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kRendererClientId),
&client_id_);
Init(test_task_counter);
}
void RenderThreadImpl::Init(
const scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue) {
TRACE_EVENT0("startup", "RenderThreadImpl::Init");
// Whether owned or unowned, |main_message_loop_| needs to be initialized in
// all constructors.
DCHECK(main_message_loop_);
GetContentClient()->renderer()->PostIOThreadCreated(GetIOTaskRunner().get());
base::trace_event::TraceLog::GetInstance()->SetThreadSortIndex(
base::PlatformThread::CurrentId(),
kTraceEventRendererMainThreadSortIndex);
#if BUILDFLAG(USE_EXTERNAL_POPUP_MENU)
// On Mac and Android Java UI, the select popups are rendered by the browser.
blink::WebView::SetUseExternalPopupMenus(true);
#endif
lazy_tls.Pointer()->Set(this);
g_main_task_runner.Get() = main_message_loop_->task_runner();
// Register this object as the main thread.
ChildProcess::current()->set_main_thread(this);
metrics::InitializeSingleSampleMetricsFactory(
base::BindRepeating(&CreateSingleSampleMetricsProvider,
message_loop()->task_runner(), GetConnector()));
gpu_ = ui::Gpu::Create(GetConnector(),
base::FeatureList::IsEnabled(features::kMash)
? ui::mojom::kServiceName
: mojom::kBrowserServiceName,
GetIOTaskRunner());
viz::mojom::SharedBitmapAllocationNotifierPtr
shared_bitmap_allocation_notifier_ptr;
GetConnector()->BindInterface(
mojom::kBrowserServiceName,
mojo::MakeRequest(&shared_bitmap_allocation_notifier_ptr));
shared_bitmap_manager_ = std::make_unique<viz::ClientSharedBitmapManager>(
viz::mojom::ThreadSafeSharedBitmapAllocationNotifierPtr::Create(
shared_bitmap_allocation_notifier_ptr.PassInterface(),
GetChannel()->ipc_task_runner_refptr()));
notification_dispatcher_ = new NotificationDispatcher(
thread_safe_sender(), GetWebMainThreadScheduler()->IPCTaskRunner());
AddFilter(notification_dispatcher_->GetFilter());
resource_dispatcher_.reset(new ResourceDispatcher());
url_loader_throttle_provider_ =
GetContentClient()->renderer()->CreateURLLoaderThrottleProvider(
URLLoaderThrottleProviderType::kFrame);
auto registry = std::make_unique<service_manager::BinderRegistry>();
InitializeWebKit(resource_task_queue, registry.get());
blink_initialized_time_ = base::TimeTicks::Now();
// In single process the single process is all there is.
webkit_shared_timer_suspended_ = false;
widget_count_ = 0;
hidden_widget_count_ = 0;
idle_notification_delay_in_ms_ = kInitialIdleHandlerDelayMs;
idle_notifications_to_skip_ = 0;
appcache_dispatcher_.reset(
new AppCacheDispatcher(new AppCacheFrontendImpl()));
registry->AddInterface(
base::BindRepeating(&AppCacheDispatcher::Bind,
base::Unretained(appcache_dispatcher())),
GetWebMainThreadScheduler()->IPCTaskRunner());
dom_storage_dispatcher_.reset(new DomStorageDispatcher());
main_thread_indexed_db_dispatcher_.reset(new IndexedDBDispatcher());
file_system_dispatcher_.reset(new FileSystemDispatcher());
vc_manager_.reset(new VideoCaptureImplManager());
browser_plugin_manager_.reset(new BrowserPluginManager());
AddObserver(browser_plugin_manager_.get());
#if BUILDFLAG(ENABLE_WEBRTC)
peer_connection_tracker_.reset(new PeerConnectionTracker());
AddObserver(peer_connection_tracker_.get());
p2p_socket_dispatcher_ = new P2PSocketDispatcher(GetIOTaskRunner().get());
AddFilter(p2p_socket_dispatcher_.get());
peer_connection_factory_.reset(
new PeerConnectionDependencyFactory(p2p_socket_dispatcher_.get()));
aec_dump_message_filter_ = new AecDumpMessageFilter(
GetIOTaskRunner(), message_loop()->task_runner());
AddFilter(aec_dump_message_filter_.get());
#endif // BUILDFLAG(ENABLE_WEBRTC)
{
scoped_refptr<AudioInputMessageFilter> audio_input_message_filter;
if (!base::FeatureList::IsEnabled(
features::kUseMojoAudioInputStreamFactory)) {
// In case we shouldn't use mojo factories, we need to create an
// AudioInputMessageFilter which |audio_input_ipc_factory_| can use for
// IPC.
audio_input_message_filter =
base::MakeRefCounted<AudioInputMessageFilter>(GetIOTaskRunner());
AddFilter(audio_input_message_filter.get());
}
audio_input_ipc_factory_.emplace(std::move(audio_input_message_filter),
message_loop()->task_runner(),
GetIOTaskRunner());
}
{
scoped_refptr<AudioMessageFilter> audio_output_message_filter;
if (!base::FeatureList::IsEnabled(
features::kUseMojoAudioOutputStreamFactory)) {
// In case we shouldn't use mojo factories, we need to create an
// AudioMessageFilter which |audio_output_ipc_factory_| can use for IPC.
audio_output_message_filter =
base::MakeRefCounted<AudioMessageFilter>(GetIOTaskRunner());
AddFilter(audio_output_message_filter.get());
}
audio_output_ipc_factory_.emplace(std::move(audio_output_message_filter),
GetIOTaskRunner());
}
midi_message_filter_ = new MidiMessageFilter(GetIOTaskRunner());
AddFilter(midi_message_filter_.get());
#if defined(USE_AURA)
if (features::IsMusEnabled())
CreateRenderWidgetWindowTreeClientFactory(GetServiceManagerConnection());
#endif
registry->AddInterface(base::Bind(&SharedWorkerFactoryImpl::Create),
base::ThreadTaskRunnerHandle::Get());
registry->AddInterface(base::BindRepeating(CreateResourceUsageReporter,
weak_factory_.GetWeakPtr()),
base::ThreadTaskRunnerHandle::Get());
GetServiceManagerConnection()->AddConnectionFilter(
std::make_unique<SimpleConnectionFilter>(std::move(registry)));
{
auto registry_with_source_info =
std::make_unique<service_manager::BinderRegistryWithArgs<
const service_manager::BindSourceInfo&>>();
registry_with_source_info->AddInterface(
base::Bind(&CreateFrameFactory), base::ThreadTaskRunnerHandle::Get());
GetServiceManagerConnection()->AddConnectionFilter(
std::make_unique<SimpleConnectionFilterWithSourceInfo>(
std::move(registry_with_source_info)));
}
GetContentClient()->renderer()->RenderThreadStarted();
StartServiceManagerConnection();
GetAssociatedInterfaceRegistry()->AddInterface(
base::Bind(&RenderThreadImpl::OnRendererInterfaceRequest,
base::Unretained(this)));
InitSkiaEventTracer();
base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
skia::SkiaMemoryDumpProvider::GetInstance(), "Skia", nullptr);
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
#if defined(ENABLE_IPC_FUZZER)
if (command_line.HasSwitch(switches::kIpcDumpDirectory)) {
base::FilePath dump_directory =
command_line.GetSwitchValuePath(switches::kIpcDumpDirectory);
IPC::ChannelProxy::OutgoingMessageFilter* filter =
LoadExternalIPCDumper(dump_directory);
GetChannel()->set_outgoing_message_filter(filter);
}
#endif
cc::SetClientNameForMetrics("Renderer");
is_threaded_animation_enabled_ =
!command_line.HasSwitch(cc::switches::kDisableThreadedAnimation);
is_zero_copy_enabled_ = command_line.HasSwitch(switches::kEnableZeroCopy);
is_partial_raster_enabled_ =
!command_line.HasSwitch(switches::kDisablePartialRaster);
is_gpu_memory_buffer_compositor_resources_enabled_ = command_line.HasSwitch(
switches::kEnableGpuMemoryBufferCompositorResources);
// On macOS this value is adjusted in `UpdateScrollbarTheme()`,
// but the system default is true.
#if defined(OS_MACOSX)
is_elastic_overscroll_enabled_ = true;
#else
is_elastic_overscroll_enabled_ = false;
#endif
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
}
if (command_line.HasSwitch(switches::kDisableGpuCompositing))
is_gpu_compositing_disabled_ = true;
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_ = -1;
}
// Note that under Linux, the media library will normally already have
// been initialized by the Zygote before this instance became a Renderer.
media::InitializeMediaLibrary();
#if defined(OS_ANDROID)
if (!command_line.HasSwitch(switches::kDisableAcceleratedVideoDecode) &&
media::MediaCodecUtil::IsMediaCodecAvailable()) {
bool accelerated_video_decode_blacklisted = false;
if (!command_line.HasSwitch(switches::kIgnoreGpuBlacklist)) {
int32_t major_version = 0, minor_version = 0, bugfix_version = 0;
base::SysInfo::OperatingSystemVersionNumbers(
&major_version, &minor_version, &bugfix_version);
if (major_version < 5) {
// Currently accelerated video decode is only blacklisted on
// Android older than Lollipop.
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host =
EstablishGpuChannelSync();
if (!gpu_channel_host ||
gpu_channel_host->gpu_feature_info().status_values
[gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_DECODE] !=
gpu::kGpuFeatureStatusEnabled) {
accelerated_video_decode_blacklisted = true;
}
}
}
if (!accelerated_video_decode_blacklisted)
media::EnablePlatformDecoderSupport();
}
#endif
memory_pressure_listener_.reset(new base::MemoryPressureListener(
base::Bind(&RenderThreadImpl::OnMemoryPressure, base::Unretained(this)),
base::Bind(&RenderThreadImpl::OnSyncMemoryPressure,
base::Unretained(this))));
if (base::FeatureList::IsEnabled(features::kMemoryCoordinator)) {
// Disable MemoryPressureListener when memory coordinator is enabled.
base::MemoryPressureListener::SetNotificationsSuppressed(true);
// TODO(bashi): Revisit how to manage the lifetime of
// ChildMemoryCoordinatorImpl.
// https://codereview.chromium.org/2094583002/#msg52
mojom::MemoryCoordinatorHandlePtr parent_coordinator;
GetConnector()->BindInterface(mojom::kBrowserServiceName,
mojo::MakeRequest(&parent_coordinator));
memory_coordinator_ = CreateChildMemoryCoordinator(
std::move(parent_coordinator), this);
}
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);
categorized_worker_pool_->Start(num_raster_threads);
discardable_memory::mojom::DiscardableSharedMemoryManagerPtr manager_ptr;
if (features::IsMusEnabled()) {
#if defined(USE_AURA)
GetServiceManagerConnection()->GetConnector()->BindInterface(
ui::mojom::kServiceName, &manager_ptr);
#else
NOTREACHED();
#endif
} else {
ChildThread::Get()->GetConnector()->BindInterface(
mojom::kBrowserServiceName, mojo::MakeRequest(&manager_ptr));
}
discardable_shared_memory_manager_ = std::make_unique<
discardable_memory::ClientDiscardableSharedMemoryManager>(
std::move(manager_ptr), GetIOTaskRunner());
// TODO(boliu): In single process, browser main loop should set up the
// discardable memory manager, and should skip this if kSingleProcess.
// See crbug.com/503724.
base::DiscardableMemoryAllocator::SetInstance(
discardable_shared_memory_manager_.get());
GetConnector()->BindInterface(mojom::kBrowserServiceName,
mojo::MakeRequest(&storage_partition_service_));
#if defined(OS_LINUX)
render_message_filter()->SetThreadPriority(
ChildProcess::current()->io_thread_id(), base::ThreadPriority::DISPLAY);
render_message_filter()->SetThreadPriority(
categorized_worker_pool_->background_worker_thread_id(),
base::ThreadPriority::BACKGROUND);
#endif
process_foregrounded_count_ = 0;
needs_to_record_first_active_paint_ = false;
was_backgrounded_time_ = base::TimeTicks::Min();
base::MemoryCoordinatorClientRegistry::GetInstance()->Register(this);
GetConnector()->BindInterface(mojom::kBrowserServiceName,
mojo::MakeRequest(&frame_sink_provider_));
if (!is_gpu_compositing_disabled_) {
GetConnector()->BindInterface(
mojom::kBrowserServiceName,
mojo::MakeRequest(&compositing_mode_reporter_));
// Make |this| a CompositingModeWatcher for the
// |compositing_mode_reporter_|.
viz::mojom::CompositingModeWatcherPtr watcher_ptr;
compositing_mode_watcher_binding_.Bind(mojo::MakeRequest(&watcher_ptr));
compositing_mode_reporter_->AddCompositingModeWatcher(
std::move(watcher_ptr));
}
}
RenderThreadImpl::~RenderThreadImpl() {
g_main_task_runner.Get() = nullptr;
}
void RenderThreadImpl::Shutdown() {
ChildThreadImpl::Shutdown();
file_system_dispatcher_.reset();
WebFileSystemImpl::DeleteThreadSpecificInstance();
// In a multi-process mode, we immediately exit the renderer.
// Historically we had a graceful shutdown sequence here but it was
// 1) a waste of performance and 2) a source of lots of complicated
// crashes caused by shutdown ordering. Immediate exit eliminates
// those problems.
// Give the V8 isolate a chance to dump internal stats useful for performance
// evaluation and debugging.
blink::MainThreadIsolate()->DumpAndResetStats();
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDumpBlinkRuntimeCallStats))
blink::LogRuntimeCallStats();
// In a single-process mode, we cannot call _exit(0) in Shutdown() because
// it will exit the process before the browser side is ready to exit.
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess))
base::Process::TerminateCurrentProcessImmediately(0);
}
bool RenderThreadImpl::ShouldBeDestroyed() {
DCHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess));
// In a single-process mode, it is unsafe to destruct this renderer thread
// because we haven't run the shutdown sequence. Hence we leak the render
// thread.
//
// In this case, we also need to disable at-exit callbacks because some of
// the at-exit callbacks are expected to run after the renderer thread
// has been destructed.
base::AtExitManager::DisableAllAtExitManagers();
return false;
}
bool RenderThreadImpl::Send(IPC::Message* msg) {
// There are cases where we want to pump asynchronous messages while waiting
// synchronously for the replies to the message to be sent here. However, this
// may create an opportunity for re-entrancy into WebKit and other subsystems,
// 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;
}
}
std::unique_ptr<blink::scheduler::WebMainThreadScheduler::RendererPauseHandle>
renderer_paused_handle;
if (pumping_events) {
renderer_paused_handle = main_thread_scheduler_->PauseRenderer();
WebView::WillEnterModalLoop();
}
bool rv = ChildThreadImpl::Send(msg);
if (pumping_events)
WebView::DidExitModalLoop();
return rv;
}
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();
}
void RenderThreadImpl::AddRoute(int32_t routing_id, IPC::Listener* listener) {
ChildThreadImpl::GetRouter()->AddRoute(routing_id, listener);
auto it = pending_frame_creates_.find(routing_id);
if (it == pending_frame_creates_.end())
return;
RenderFrameImpl* frame = RenderFrameImpl::FromRoutingID(routing_id);
if (!frame)
return;
scoped_refptr<PendingFrameCreate> create(it->second);
frame->BindFrame(it->second->browser_info(), it->second->TakeFrameRequest());
pending_frame_creates_.erase(it);
}
void RenderThreadImpl::RemoveRoute(int32_t routing_id) {
ChildThreadImpl::GetRouter()->RemoveRoute(routing_id);
}
void RenderThreadImpl::RegisterPendingFrameCreate(
const service_manager::BindSourceInfo& browser_info,
int routing_id,
mojom::FrameRequest frame_request) {
std::pair<PendingFrameCreateMap::iterator, bool> result =
pending_frame_creates_.insert(std::make_pair(
routing_id, base::MakeRefCounted<PendingFrameCreate>(
browser_info, routing_id, std::move(frame_request))));
CHECK(result.second) << "Inserting a duplicate item.";
}
mojom::StoragePartitionService* RenderThreadImpl::GetStoragePartitionService() {
return storage_partition_service_.get();
}
mojom::RendererHost* RenderThreadImpl::GetRendererHost() {
if (!renderer_host_) {
GetChannel()->GetRemoteAssociatedInterface(&renderer_host_);
}
return renderer_host_.get();
}
int RenderThreadImpl::GenerateRoutingID() {
int32_t routing_id = MSG_ROUTING_NONE;
render_message_filter()->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(RenderThreadObserver* observer) {
observers_.AddObserver(observer);
observer->RegisterMojoInterfaces(&associated_interfaces_);
}
void RenderThreadImpl::RemoveObserver(RenderThreadObserver* observer) {
observer->UnregisterMojoInterfaces(&associated_interfaces_);
observers_.RemoveObserver(observer);
}
void RenderThreadImpl::SetResourceDispatcherDelegate(
ResourceDispatcherDelegate* delegate) {
resource_dispatcher_->set_delegate(delegate);
}
void RenderThreadImpl::InitializeCompositorThread() {
blink::WebThreadCreationParams params(
blink::WebThreadType::kCompositorThread);
#if defined(OS_ANDROID)
params.thread_options.priority = base::ThreadPriority::DISPLAY;
#endif
compositor_thread_ =
blink::scheduler::WebThreadBase::CreateCompositorThread(params);
blink_platform_impl_->SetCompositorThread(compositor_thread_.get());
compositor_task_runner_ = compositor_thread_->GetTaskRunner();
compositor_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(base::IgnoreResult(&ThreadRestrictions::SetIOAllowed),
false));
GetContentClient()->renderer()->PostCompositorThreadCreated(
compositor_task_runner_.get());
#if defined(OS_LINUX)
render_message_filter()->SetThreadPriority(compositor_thread_->ThreadId(),
base::ThreadPriority::DISPLAY);
#endif
if (!base::FeatureList::IsEnabled(features::kMojoInputMessages)) {
SynchronousInputHandlerProxyClient* synchronous_input_handler_proxy_client =
nullptr;
#if defined(OS_ANDROID)
if (GetContentClient()->UsingSynchronousCompositing()) {
sync_compositor_message_filter_ =
new SynchronousCompositorFilter(compositor_task_runner_);
AddFilter(sync_compositor_message_filter_.get());
synchronous_input_handler_proxy_client =
sync_compositor_message_filter_.get();
}
#endif
scoped_refptr<InputEventFilter> compositor_input_event_filter(
new InputEventFilter(main_input_callback_.callback(),
main_thread_compositor_task_runner_,
compositor_task_runner_));
InputHandlerManagerClient* input_handler_manager_client =
compositor_input_event_filter.get();
input_event_filter_ = compositor_input_event_filter;
input_handler_manager_.reset(new InputHandlerManager(
compositor_task_runner_, input_handler_manager_client,
synchronous_input_handler_proxy_client, main_thread_scheduler_.get()));
}
}
void RenderThreadImpl::InitializeWebKit(
const scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue,
service_manager::BinderRegistry* registry) {
DCHECK(!blink_platform_impl_);
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
blink_platform_impl_.reset(
new RendererBlinkPlatformImpl(main_thread_scheduler_.get()));
SetRuntimeFeaturesDefaultsAndUpdateFromArgs(command_line);
GetContentClient()
->renderer()
->SetRuntimeFeaturesDefaultsBeforeBlinkInitialization();
blink::Initialize(blink_platform_impl_.get(), registry);
v8::Isolate* isolate = blink::MainThreadIsolate();
isolate->SetCreateHistogramFunction(CreateHistogram);
isolate->SetAddHistogramSampleFunction(AddHistogramSample);
main_thread_scheduler_->SetRAILModeObserver(this);
main_thread_compositor_task_runner_ =
main_thread_scheduler_->CompositorTaskRunner();
main_input_callback_.Reset(
base::Bind(base::IgnoreResult(&RenderThreadImpl::OnMessageReceived),
base::Unretained(this)));
if (!command_line.HasSwitch(switches::kDisableThreadedCompositing))
InitializeCompositorThread();
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<base::SingleThreadTaskRunner> compositor_impl_side_task_runner;
if (compositor_task_runner_)
compositor_impl_side_task_runner = compositor_task_runner_;
else
compositor_impl_side_task_runner = base::ThreadTaskRunnerHandle::Get();
RenderThreadImpl::RegisterSchemes();
RenderMediaClient::Initialize();
idle_timer_.SetTaskRunner(GetWebMainThreadScheduler()->DefaultTaskRunner());
if (GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
ScheduleIdleHandler(kLongIdleHandlerDelayMs);
} else {
// If we do not track widget visibility, then assume conservatively that
// the isolate is in background. This reduces memory usage.
isolate->IsolateInBackgroundNotification();
}
service_worker_message_filter_ = new ServiceWorkerMessageFilter(
thread_safe_sender(), GetWebMainThreadScheduler()->IPCTaskRunner());
AddFilter(service_worker_message_filter_->GetFilter());
main_thread_scheduler_->SetStoppingWhenBackgroundedEnabled(
GetContentClient()->renderer()->AllowStoppingWhenProcessBackgrounded());
SkGraphics::SetResourceCacheSingleAllocationByteLimit(
kImageCacheSingleAllocationByteLimit);
// Hook up blink's codecs so skia can call them
SkGraphics::SetImageGeneratorFromEncodedDataFactory(
blink::WebImageGenerator::CreateAsSkImageGenerator);
if (command_line.HasSwitch(switches::kExplicitlyAllowedPorts)) {
std::string allowed_ports =
command_line.GetSwitchValueASCII(switches::kExplicitlyAllowedPorts);
net::SetExplicitlyAllowedPorts(allowed_ports);
}
}
void RenderThreadImpl::RegisterSchemes() {
// chrome:
WebString chrome_scheme(WebString::FromASCII(kChromeUIScheme));
WebSecurityPolicy::RegisterURLSchemeAsDisplayIsolated(chrome_scheme);
WebSecurityPolicy::RegisterURLSchemeAsNotAllowingJavascriptURLs(
chrome_scheme);
// chrome-devtools:
WebString devtools_scheme(WebString::FromASCII(kChromeDevToolsScheme));
WebSecurityPolicy::RegisterURLSchemeAsDisplayIsolated(devtools_scheme);
// view-source:
WebString view_source_scheme(WebString::FromASCII(kViewSourceScheme));
WebSecurityPolicy::RegisterURLSchemeAsDisplayIsolated(view_source_scheme);
// chrome-error:
WebString error_scheme(WebString::FromASCII(kChromeErrorScheme));
WebSecurityPolicy::RegisterURLSchemeAsDisplayIsolated(error_scheme);
WebSecurityPolicy::RegisterURLSchemeAsNotAllowingJavascriptURLs(error_scheme);
}
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));
}
std::unique_ptr<base::SharedMemory>
RenderThreadImpl::HostAllocateSharedMemoryBuffer(size_t size) {
return ChildThreadImpl::AllocateSharedMemory(size);
}
viz::SharedBitmapManager* RenderThreadImpl::GetSharedBitmapManager() {
return shared_bitmap_manager();
}
void RenderThreadImpl::RegisterExtension(v8::Extension* extension) {
WebScriptController::RegisterExtension(extension);
}
void RenderThreadImpl::ScheduleIdleHandler(int64_t 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 {
ReleaseFreeMemory();
}
ScheduleIdleHandler(kLongIdleHandlerDelayMs);
return;
}
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_;
// 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 (auto& observer : observers_)
observer.IdleNotification();
}
int64_t RenderThreadImpl::GetIdleNotificationDelayInMs() const {
return idle_notification_delay_in_ms_;
}
void RenderThreadImpl::SetIdleNotificationDelayInMs(
int64_t idle_notification_delay_in_ms) {
idle_notification_delay_in_ms_ = idle_notification_delay_in_ms;
}
int RenderThreadImpl::PostTaskToAllWebWorkers(const base::Closure& closure) {
return WorkerThreadRegistry::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;
}
media::GpuVideoAcceleratorFactories* RenderThreadImpl::GetGpuFactories() {
DCHECK(IsMainThread());
if (!gpu_factories_.empty()) {
if (!gpu_factories_.back()->CheckContextProviderLost())
return gpu_factories_.back().get();
GetMediaThreadTaskRunner()->PostTask(
FROM_HERE,
base::BindOnce(base::IgnoreResult(
&GpuVideoAcceleratorFactoriesImpl::CheckContextLost),
base::Unretained(gpu_factories_.back().get())));
}
const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host =
EstablishGpuChannelSync();
if (!gpu_channel_host)
return nullptr;
// This context is only used to create textures and mailbox them, so
// use lower limits than the default.
gpu::SharedMemoryLimits limits = gpu::SharedMemoryLimits::ForMailboxContext();
bool support_locking = false;
bool support_gles2_interface = true;
bool support_raster_interface = false;
bool support_oop_rasterization = false;
bool support_grcontext = false;
scoped_refptr<ui::ContextProviderCommandBuffer> media_context_provider =
CreateOffscreenContext(gpu_channel_host, GetGpuMemoryBufferManager(),
limits, support_locking, support_gles2_interface,
support_raster_interface,
support_oop_rasterization, support_grcontext,
ui::command_buffer_metrics::MEDIA_CONTEXT,
kGpuStreamIdMedia, kGpuStreamPriorityMedia);
const bool enable_video_accelerator =
!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode) &&
(gpu_channel_host->gpu_feature_info()
.status_values[gpu::GPU_FEATURE_TYPE_ACCELERATED_VIDEO_DECODE] ==
gpu::kGpuFeatureStatusEnabled);
const bool enable_gpu_memory_buffer_video_frames =
!is_gpu_compositing_disabled_ &&
#if defined(OS_MACOSX) || defined(OS_LINUX)
!cmd_line->HasSwitch(switches::kDisableGpuMemoryBufferVideoFrames);
#elif defined(OS_WIN)
!cmd_line->HasSwitch(switches::kDisableGpuMemoryBufferVideoFrames) &&
(cmd_line->HasSwitch(switches::kEnableGpuMemoryBufferVideoFrames) ||
gpu_channel_host->gpu_info().supports_overlays);
#else
cmd_line->HasSwitch(switches::kEnableGpuMemoryBufferVideoFrames);
#endif
media::mojom::VideoEncodeAcceleratorProviderPtr vea_provider;
gpu_->CreateVideoEncodeAcceleratorProvider(mojo::MakeRequest(&vea_provider));
gpu_factories_.push_back(GpuVideoAcceleratorFactoriesImpl::Create(
std::move(gpu_channel_host), base::ThreadTaskRunnerHandle::Get(),
GetMediaThreadTaskRunner(), std::move(media_context_provider),
enable_gpu_memory_buffer_video_frames, enable_video_accelerator,
vea_provider.PassInterface()));
gpu_factories_.back()->SetRenderingColorSpace(rendering_color_space_);
return gpu_factories_.back().get();
}
scoped_refptr<ui::ContextProviderCommandBuffer>
RenderThreadImpl::SharedMainThreadContextProvider() {
DCHECK(IsMainThread());
if (shared_main_thread_contexts_ &&
shared_main_thread_contexts_->ContextGL()->GetGraphicsResetStatusKHR() ==
GL_NO_ERROR)
return shared_main_thread_contexts_;
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host(
EstablishGpuChannelSync());
if (!gpu_channel_host) {
shared_main_thread_contexts_ = nullptr;
return nullptr;
}
bool support_locking = false;
bool support_gles2_interface = true;
bool support_raster_interface = false;
bool support_oop_rasterization = false;
bool support_grcontext = true;
shared_main_thread_contexts_ = CreateOffscreenContext(
std::move(gpu_channel_host), GetGpuMemoryBufferManager(),
gpu::SharedMemoryLimits(), support_locking, support_gles2_interface,
support_raster_interface, support_oop_rasterization, support_grcontext,
ui::command_buffer_metrics::RENDERER_MAINTHREAD_CONTEXT,
kGpuStreamIdDefault, kGpuStreamPriorityDefault);
auto result = shared_main_thread_contexts_->BindToCurrentThread();
if (result != gpu::ContextResult::kSuccess)
shared_main_thread_contexts_ = nullptr;
return shared_main_thread_contexts_;
}
#if defined(OS_ANDROID)
scoped_refptr<StreamTextureFactory> RenderThreadImpl::GetStreamTexureFactory() {
DCHECK(IsMainThread());
if (!stream_texture_factory_.get() ||
stream_texture_factory_->ContextGL()->GetGraphicsResetStatusKHR() !=
GL_NO_ERROR) {
scoped_refptr<ui::ContextProviderCommandBuffer> shared_context_provider =
SharedMainThreadContextProvider();
if (!shared_context_provider) {
stream_texture_factory_ = nullptr;
return nullptr;
}
DCHECK(shared_context_provider->GetCommandBufferProxy());
DCHECK(shared_context_provider->GetCommandBufferProxy()->channel());
stream_texture_factory_ =
StreamTextureFactory::Create(std::move(shared_context_provider));
}
return stream_texture_factory_;
}
bool RenderThreadImpl::EnableStreamTextureCopy() {
return GetContentClient()->UsingSynchronousCompositing();
}
#endif
AudioRendererMixerManager* RenderThreadImpl::GetAudioRendererMixerManager() {
if (!audio_renderer_mixer_manager_) {
audio_renderer_mixer_manager_ = AudioRendererMixerManager::Create();
}
return audio_renderer_mixer_manager_.get();
}
base::WaitableEvent* RenderThreadImpl::GetShutdownEvent() {
return ChildProcess::current()->GetShutDownEvent();
}
int32_t RenderThreadImpl::GetClientId() {
return client_id_;
}
void RenderThreadImpl::SetRendererProcessType(
blink::scheduler::RendererProcessType type) {
main_thread_scheduler_->SetRendererProcessType(type);
}
bool RenderThreadImpl::OnMessageReceived(const IPC::Message& msg) {
if (file_system_dispatcher_->OnMessageReceived(msg))
return true;
return ChildThreadImpl::OnMessageReceived(msg);
}
void RenderThreadImpl::OnAssociatedInterfaceRequest(
const std::string& name,
mojo::ScopedInterfaceEndpointHandle handle) {
if (associated_interfaces_.CanBindRequest(name))
associated_interfaces_.BindRequest(name, std::move(handle));
else
ChildThreadImpl::OnAssociatedInterfaceRequest(name, std::move(handle));
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetIOTaskRunner() {
return ChildProcess::current()->io_task_runner();
}
bool RenderThreadImpl::IsGpuRasterizationForced() {
return is_gpu_rasterization_forced_;
}
int RenderThreadImpl::GetGpuRasterizationMSAASampleCount() {
return gpu_rasterization_msaa_sample_count_;
}
bool RenderThreadImpl::IsLcdTextEnabled() {
return is_lcd_text_enabled_;
}
bool RenderThreadImpl::IsZeroCopyEnabled() {
return is_zero_copy_enabled_;
}
bool RenderThreadImpl::IsPartialRasterEnabled() {
return is_partial_raster_enabled_;
}
bool RenderThreadImpl::IsGpuMemoryBufferCompositorResourcesEnabled() {
return is_gpu_memory_buffer_compositor_resources_enabled_;
}
bool RenderThreadImpl::IsElasticOverscrollEnabled() {
return is_elastic_overscroll_enabled_;
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetCompositorMainThreadTaskRunner() {
return main_thread_compositor_task_runner_;
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetCompositorImplThreadTaskRunner() {
return compositor_task_runner_;
}
gpu::GpuMemoryBufferManager* RenderThreadImpl::GetGpuMemoryBufferManager() {
return gpu_->gpu_memory_buffer_manager();
}
blink::scheduler::WebMainThreadScheduler*
RenderThreadImpl::GetWebMainThreadScheduler() {
return main_thread_scheduler_.get();
}
std::unique_ptr<viz::SyntheticBeginFrameSource>
RenderThreadImpl::CreateSyntheticBeginFrameSource() {
base::SingleThreadTaskRunner* compositor_impl_side_task_runner =
compositor_task_runner_ ? compositor_task_runner_.get()
: base::ThreadTaskRunnerHandle::Get().get();
return std::make_unique<viz::BackToBackBeginFrameSource>(
std::make_unique<viz::DelayBasedTimeSource>(
compositor_impl_side_task_runner));
}
cc::TaskGraphRunner* RenderThreadImpl::GetTaskGraphRunner() {
return categorized_worker_pool_->GetTaskGraphRunner();
}
bool RenderThreadImpl::IsThreadedAnimationEnabled() {
return is_threaded_animation_enabled_;
}
bool RenderThreadImpl::IsScrollAnimatorEnabled() {
return is_scroll_animator_enabled_;
}
std::unique_ptr<cc::UkmRecorderFactory>
RenderThreadImpl::CreateUkmRecorderFactory() {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableCompositorUkmForTests)) {
return nullptr;
}
return std::make_unique<UkmRecorderFactoryImpl>(GetConnector()->Clone());
}
void RenderThreadImpl::OnRAILModeChanged(v8::RAILMode rail_mode) {
blink::MainThreadIsolate()->SetRAILMode(rail_mode);
blink::SetRAILModeOnWorkerThreadIsolates(rail_mode);
}
bool RenderThreadImpl::IsMainThread() {
return !!current();
}
void RenderThreadImpl::OnChannelError() {
// In single-process mode, the renderer can't be restarted after shutdown.
// So, if we get a channel error, crash the whole process right now to get a
// more informative stack, since we will otherwise just crash later when we
// try to restart it.
CHECK(!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess));
ChildThreadImpl::OnChannelError();
}
void RenderThreadImpl::OnProcessFinalRelease() {
if (on_channel_error_called())
return;
// The child process shutdown sequence is a request response based mechanism,
// where we send out an initial feeler request to the child process host
// instance in the browser to verify if it's ok to shutdown the child process.
// The browser then sends back a response if it's ok to shutdown. This avoids
// race conditions if the process refcount is 0 but there's an IPC message
// inflight that would addref it.
GetRendererHost()->ShutdownRequest();
}
bool RenderThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
for (auto& observer : observers_) {
if (observer.OnControlMessageReceived(msg))
return true;
}
// Some messages are handled by delegates.
if (dom_storage_dispatcher_->OnMessageReceived(msg)) {
return true;
}
return false;
}
void RenderThreadImpl::SetSchedulerKeepActive(bool keep_active) {
main_thread_scheduler_->SetSchedulerKeepActive(keep_active);
}
void RenderThreadImpl::SetProcessBackgrounded(bool backgrounded) {
// Set timer slack to maximum on main thread when in background.
base::TimerSlack timer_slack = base::TIMER_SLACK_NONE;
if (backgrounded)
timer_slack = base::TIMER_SLACK_MAXIMUM;
main_message_loop_->SetTimerSlack(timer_slack);
main_thread_scheduler_->SetRendererBackgrounded(backgrounded);
if (backgrounded) {
needs_to_record_first_active_paint_ = false;
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RenderThreadImpl::RecordMemoryUsageAfterBackgrounded,
base::Unretained(this), "5min",
process_foregrounded_count_),
base::TimeDelta::FromMinutes(5));
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RenderThreadImpl::RecordMemoryUsageAfterBackgrounded,
base::Unretained(this), "10min",
process_foregrounded_count_),
base::TimeDelta::FromMinutes(10));
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RenderThreadImpl::RecordMemoryUsageAfterBackgrounded,
base::Unretained(this), "15min",
process_foregrounded_count_),
base::TimeDelta::FromMinutes(15));
was_backgrounded_time_ = base::TimeTicks::Now();
} else {
process_foregrounded_count_++;
}
}
void RenderThreadImpl::ProcessPurgeAndSuspend() {
if (!RendererIsHidden())
return;
if (!base::FeatureList::IsEnabled(features::kPurgeAndSuspend))
return;
base::MemoryCoordinatorClientRegistry::GetInstance()->PurgeMemory();
needs_to_record_first_active_paint_ = true;
RendererMemoryMetrics memory_metrics;
if (!GetRendererMemoryMetrics(&memory_metrics))
return;
purge_and_suspend_memory_metrics_ = memory_metrics;
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(
&RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics,
base::Unretained(this), "30min", process_foregrounded_count_),
base::TimeDelta::FromMinutes(30));
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(
&RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics,
base::Unretained(this), "60min", process_foregrounded_count_),
base::TimeDelta::FromMinutes(60));
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(
&RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics,
base::Unretained(this), "90min", process_foregrounded_count_),
base::TimeDelta::FromMinutes(90));
}
bool RenderThreadImpl::GetRendererMemoryMetrics(
RendererMemoryMetrics* memory_metrics) const {
DCHECK(memory_metrics);
// Cache this result, as it can change while this code is running, and is used
// as a divisor below.
size_t render_view_count = RenderView::GetRenderViewCount();
// If there are no render views it doesn't make sense to calculate metrics
// right now.
if (render_view_count == 0)
return false;
blink::WebMemoryStatistics blink_stats = blink::WebMemoryStatistics::Get();
memory_metrics->partition_alloc_kb =
blink_stats.partition_alloc_total_allocated_bytes / 1024;
memory_metrics->blink_gc_kb =
blink_stats.blink_gc_total_allocated_bytes / 1024;
std::unique_ptr<base::ProcessMetrics> metric(
base::ProcessMetrics::CreateCurrentProcessMetrics());
size_t malloc_usage = metric->GetMallocUsage();
memory_metrics->malloc_mb = malloc_usage / 1024 / 1024;
discardable_memory::ClientDiscardableSharedMemoryManager::Statistics
discardable_stats = discardable_shared_memory_manager_->GetStatistics();
size_t discardable_usage =
discardable_stats.total_size - discardable_stats.freelist_size;
memory_metrics->discardable_kb = discardable_usage / 1024;
size_t v8_usage = 0;
if (v8::Isolate* isolate = blink::MainThreadIsolate()) {
v8::HeapStatistics v8_heap_statistics;
isolate->GetHeapStatistics(&v8_heap_statistics);
v8_usage = v8_heap_statistics.total_heap_size();
}
// TODO(tasak): Currently only memory usage of mainThreadIsolate() is
// reported. We should collect memory usages of all isolates using
// memory-infra.
memory_metrics->v8_main_thread_isolate_mb = v8_usage / 1024 / 1024;
size_t total_allocated = blink_stats.partition_alloc_total_allocated_bytes +
blink_stats.blink_gc_total_allocated_bytes +
malloc_usage + v8_usage + discardable_usage;
memory_metrics->total_allocated_mb = total_allocated / 1024 / 1024;
memory_metrics->non_discardable_total_allocated_mb =
(total_allocated - discardable_usage) / 1024 / 1024;
memory_metrics->total_allocated_per_render_view_mb =
total_allocated / render_view_count / 1024 / 1024;
return true;
}
static void RecordMemoryUsageAfterBackgroundedMB(const char* basename,
const char* suffix,
int memory_usage) {
std::string histogram_name = base::StringPrintf("%s.%s", basename, suffix);
base::UmaHistogramMemoryLargeMB(histogram_name, memory_usage);
}
void RenderThreadImpl::RecordMemoryUsageAfterBackgrounded(
const char* suffix,
int foregrounded_count) {
// If this renderer is resumed, we should not update UMA.
if (!RendererIsHidden())
return;
// If this renderer was not kept backgrounded for 5/10/15 minutes,
// we should not record current memory usage.
if (foregrounded_count != process_foregrounded_count_)
return;
RendererMemoryMetrics memory_metrics;
if (!GetRendererMemoryMetrics(&memory_metrics))
return;
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.PartitionAlloc.AfterBackgrounded", suffix,
memory_metrics.partition_alloc_kb / 1024);
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.BlinkGC.AfterBackgrounded", suffix,
memory_metrics.blink_gc_kb / 1024);
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.Malloc.AfterBackgrounded", suffix,
memory_metrics.malloc_mb);
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.Discardable.AfterBackgrounded", suffix,
memory_metrics.discardable_kb / 1024);
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.V8MainThreaIsolate.AfterBackgrounded",
suffix, memory_metrics.v8_main_thread_isolate_mb);
RecordMemoryUsageAfterBackgroundedMB(
"Memory.Experimental.Renderer.TotalAllocated.AfterBackgrounded", suffix,
memory_metrics.total_allocated_mb);
}
#define GET_MEMORY_GROWTH(current, previous, allocator) \
(current.allocator > previous.allocator \
? current.allocator - previous.allocator \
: 0)
static void RecordPurgeAndSuspendMemoryGrowthKB(const char* basename,
const char* suffix,
int memory_usage) {
std::string histogram_name = base::StringPrintf("%s.%s", basename, suffix);
base::UmaHistogramMemoryKB(histogram_name, memory_usage);
}
void RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics(
const char* suffix,
int foregrounded_count_when_purged) {
// If this renderer is resumed, we should not update UMA.
if (!RendererIsHidden())
return;
if (foregrounded_count_when_purged != process_foregrounded_count_)
return;
RendererMemoryMetrics memory_metrics;
if (!GetRendererMemoryMetrics(&memory_metrics))
return;
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.PartitionAllocKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
partition_alloc_kb));
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.BlinkGCKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
blink_gc_kb));
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.MallocKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
malloc_mb) *
1024);
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.DiscardableKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
discardable_kb));
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.V8MainThreadIsolateKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
v8_main_thread_isolate_mb) *
1024);
RecordPurgeAndSuspendMemoryGrowthKB(
"PurgeAndSuspend.Experimental.MemoryGrowth.TotalAllocatedKB", suffix,
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
total_allocated_mb) *
1024);
}
void RenderThreadImpl::CompositingModeFallbackToSoftware() {
gpu_->LoseChannel();
is_gpu_compositing_disabled_ = true;
}
scoped_refptr<gpu::GpuChannelHost> RenderThreadImpl::EstablishGpuChannelSync() {
TRACE_EVENT0("gpu", "RenderThreadImpl::EstablishGpuChannelSync");
scoped_refptr<gpu::GpuChannelHost> gpu_channel =
gpu_->EstablishGpuChannelSync();
if (gpu_channel)
GetContentClient()->SetGpuInfo(gpu_channel->gpu_info());
return gpu_channel;
}
void RenderThreadImpl::RequestNewLayerTreeFrameSink(
int routing_id,
scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue,
const GURL& url,
const LayerTreeFrameSinkCallback& callback,
mojom::RenderFrameMetadataObserverClientRequest
render_frame_metadata_observer_client_request,
mojom::RenderFrameMetadataObserverPtr render_frame_metadata_observer_ptr) {
// Misconfigured bots (eg. crbug.com/780757) could run layout tests on a
// machine where gpu compositing doesn't work. Don't crash in that case.
if (layout_test_mode() && is_gpu_compositing_disabled_) {
LOG(FATAL) << "Layout tests require gpu compositing, but it is disabled.";
return;
}
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
viz::ClientLayerTreeFrameSink::InitParams params;
params.compositor_task_runner = compositor_task_runner_;
params.enable_surface_synchronization =
features::IsSurfaceSynchronizationEnabled();
params.local_surface_id_provider =
std::make_unique<RendererLocalSurfaceIdProvider>();
if (features::IsVizHitTestingDrawQuadEnabled()) {
params.hit_test_data_provider =
std::make_unique<viz::HitTestDataProviderDrawQuad>(
true /* should_ask_for_child_region */);
} else if (features::IsVizHitTestingSurfaceLayerEnabled()) {
params.hit_test_data_provider =
std::make_unique<viz::HitTestDataProviderSurfaceLayer>();
}
// The renderer runs animations and layout for animate_only BeginFrames.
params.wants_animate_only_begin_frames = true;
// In disable gpu vsync mode, also let the renderer tick as fast as it
// can. The top level begin frame source will also be running as a back
// to back begin frame source, but using a synthetic begin frame source
// here reduces latency when in this mode (at least for frames
// starting--it potentially increases it for input on the other hand.)
if (command_line.HasSwitch(switches::kDisableGpuVsync) &&
command_line.GetSwitchValueASCII(switches::kDisableGpuVsync) != "gpu") {
params.synthetic_begin_frame_source = CreateSyntheticBeginFrameSource();
}
#if defined(USE_AURA)
if (base::FeatureList::IsEnabled(features::kMash)) {
if (!RendererWindowTreeClient::Get(routing_id)) {
callback.Run(nullptr);
return;
}
scoped_refptr<gpu::GpuChannelHost> channel = EstablishGpuChannelSync();
// If the channel could not be established correctly, then return null. This
// would cause the compositor to wait and try again at a later time.
if (!channel) {
callback.Run(nullptr);
return;
}
RendererWindowTreeClient::Get(routing_id)
->RequestLayerTreeFrameSink(
gpu_->CreateContextProvider(std::move(channel)),
GetGpuMemoryBufferManager(), callback);
return;
}
#endif
viz::mojom::CompositorFrameSinkRequest compositor_frame_sink_request =
mojo::MakeRequest(&params.pipes.compositor_frame_sink_info);
viz::mojom::CompositorFrameSinkClientPtr compositor_frame_sink_client;
params.pipes.client_request =
mojo::MakeRequest(&compositor_frame_sink_client);
if (is_gpu_compositing_disabled_) {
DCHECK(!layout_test_mode());
frame_sink_provider_->CreateForWidget(
routing_id, std::move(compositor_frame_sink_request),
std::move(compositor_frame_sink_client),
std::move(render_frame_metadata_observer_client_request),
std::move(render_frame_metadata_observer_ptr));
params.shared_bitmap_manager = shared_bitmap_manager();
callback.Run(std::make_unique<viz::ClientLayerTreeFrameSink>(
nullptr, nullptr, &params));
return;
}
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host =
EstablishGpuChannelSync();
if (!gpu_channel_host) {
// Wait and try again. We may hear that the compositing mode has switched
// to software in the meantime.
callback.Run(nullptr);
return;
}
scoped_refptr<viz::RasterContextProvider> worker_context_provider =
SharedCompositorWorkerContextProvider();
if (!worker_context_provider) {
// Cause the compositor to wait and try again.
callback.Run(nullptr);
return;
}
// The renderer compositor context doesn't do a lot of stuff, so we don't
// expect it to need a lot of space for commands or transfer. Raster and
// uploads happen on the worker context instead.
gpu::SharedMemoryLimits limits = gpu::SharedMemoryLimits::ForMailboxContext();
// This is for an offscreen context for the compositor. So the default
// framebuffer doesn't need alpha, depth, stencil, antialiasing.
gpu::ContextCreationAttribs attributes;
attributes.alpha_size = -1;
attributes.depth_size = 0;
attributes.stencil_size = 0;
attributes.samples = 0;
attributes.sample_buffers = 0;
attributes.bind_generates_resource = false;
attributes.lose_context_when_out_of_memory = true;
attributes.enable_gles2_interface = true;
attributes.enable_raster_interface = false;
attributes.enable_oop_rasterization = false;
constexpr bool automatic_flushes = false;
constexpr bool support_locking = false;
constexpr bool support_grcontext = false;
scoped_refptr<ui::ContextProviderCommandBuffer> context_provider(
new ui::ContextProviderCommandBuffer(
gpu_channel_host, GetGpuMemoryBufferManager(), kGpuStreamIdDefault,
kGpuStreamPriorityDefault, gpu::kNullSurfaceHandle, url,
automatic_flushes, support_locking, support_grcontext, limits,
attributes, nullptr /* share_context */,
ui::command_buffer_metrics::RENDER_COMPOSITOR_CONTEXT));
if (layout_test_deps_) {
callback.Run(layout_test_deps_->CreateLayerTreeFrameSink(
routing_id, std::move(gpu_channel_host), std::move(context_provider),
std::move(worker_context_provider), GetGpuMemoryBufferManager(), this));
return;
}
#if defined(OS_ANDROID)
if (GetContentClient()->UsingSynchronousCompositing()) {
if (base::FeatureList::IsEnabled(features::kMojoInputMessages)) {
RenderViewImpl* view = RenderViewImpl::FromRoutingID(routing_id);
if (view) {
callback.Run(std::make_unique<SynchronousLayerTreeFrameSink>(
std::move(context_provider), std::move(worker_context_provider),
compositor_task_runner_, GetGpuMemoryBufferManager(),
sync_message_filter(), routing_id,
g_next_layer_tree_frame_sink_id++,
std::move(params.synthetic_begin_frame_source),
view->widget_input_handler_manager()
->GetSynchronousCompositorRegistry(),
std::move(frame_swap_message_queue)));
return;
} else {
NOTREACHED();
}
} else {
callback.Run(std::make_unique<SynchronousLayerTreeFrameSink>(
std::move(context_provider), std::move(worker_context_provider),
compositor_task_runner_, GetGpuMemoryBufferManager(),
sync_compositor_message_filter_.get(), routing_id,
g_next_layer_tree_frame_sink_id++,
std::move(params.synthetic_begin_frame_source),
sync_compositor_message_filter_.get(),
std::move(frame_swap_message_queue)));
return;
}
}
#endif
frame_sink_provider_->CreateForWidget(
routing_id, std::move(compositor_frame_sink_request),
std::move(compositor_frame_sink_client),
std::move(render_frame_metadata_observer_client_request),
std::move(render_frame_metadata_observer_ptr));
params.gpu_memory_buffer_manager = GetGpuMemoryBufferManager();
callback.Run(std::make_unique<viz::ClientLayerTreeFrameSink>(
std::move(context_provider), std::move(worker_context_provider),
&params));
}
blink::AssociatedInterfaceRegistry*
RenderThreadImpl::GetAssociatedInterfaceRegistry() {
return &associated_interfaces_;
}
std::unique_ptr<cc::SwapPromise>
RenderThreadImpl::RequestCopyOfOutputForLayoutTest(
int32_t routing_id,
std::unique_ptr<viz::CopyOutputRequest> request) {
DCHECK(layout_test_deps_);
return layout_test_deps_->RequestCopyOfOutput(routing_id, std::move(request));
}
std::unique_ptr<blink::WebMediaStreamCenter>
RenderThreadImpl::CreateMediaStreamCenter(
blink::WebMediaStreamCenterClient* client) {
std::unique_ptr<blink::WebMediaStreamCenter> media_stream_center;
#if BUILDFLAG(ENABLE_WEBRTC)
if (!media_stream_center) {
media_stream_center = std::make_unique<MediaStreamCenter>(
client, GetPeerConnectionDependencyFactory());
}
#endif
return media_stream_center;
}
#if BUILDFLAG(ENABLE_WEBRTC)
PeerConnectionDependencyFactory*
RenderThreadImpl::GetPeerConnectionDependencyFactory() {
return peer_connection_factory_.get();
}
#endif
mojom::RenderFrameMessageFilter*
RenderThreadImpl::render_frame_message_filter() {
if (!render_frame_message_filter_)
GetChannel()->GetRemoteAssociatedInterface(&render_frame_message_filter_);
return render_frame_message_filter_.get();
}
mojom::RenderMessageFilter* RenderThreadImpl::render_message_filter() {
if (!render_message_filter_)
GetChannel()->GetRemoteAssociatedInterface(&render_message_filter_);
return render_message_filter_.get();
}
gpu::GpuChannelHost* RenderThreadImpl::GetGpuChannel() {
return gpu_->GetGpuChannel().get();
}
void RenderThreadImpl::CreateEmbedderRendererService(
service_manager::mojom::ServiceRequest service_request) {
GetContentClient()->renderer()->CreateRendererService(
std::move(service_request));
}
void RenderThreadImpl::CreateView(mojom::CreateViewParamsPtr params) {
CompositorDependencies* compositor_deps = this;
is_scroll_animator_enabled_ = params->web_preferences.enable_scroll_animator;
// When bringing in render_view, also bring in webkit's glue and jsbindings.
RenderViewImpl::Create(compositor_deps, std::move(params),
RenderWidget::ShowCallback(),
GetWebMainThreadScheduler()->DefaultTaskRunner());
}
void RenderThreadImpl::CreateFrame(mojom::CreateFrameParamsPtr params) {
CompositorDependencies* compositor_deps = this;
service_manager::mojom::InterfaceProviderPtr interface_provider(
std::move(params->interface_provider));
RenderFrameImpl::CreateFrame(
params->routing_id, std::move(interface_provider),
params->proxy_routing_id, params->opener_routing_id,
params->parent_routing_id, params->previous_sibling_routing_id,
params->devtools_frame_token, params->replication_state, compositor_deps,
*params->widget_params, params->frame_owner_properties,
params->has_committed_real_load);
}
void RenderThreadImpl::SetUpEmbeddedWorkerChannelForServiceWorker(
mojom::EmbeddedWorkerInstanceClientAssociatedRequest client_request) {
EmbeddedWorkerInstanceClientImpl::Create(
blink_initialized_time_, GetIOTaskRunner(), std::move(client_request));
}
void RenderThreadImpl::CreateFrameProxy(
int32_t routing_id,
int32_t render_view_routing_id,
int32_t opener_routing_id,
int32_t parent_routing_id,
const FrameReplicationState& replicated_state,
const base::UnguessableToken& devtools_frame_token) {
RenderFrameProxy::CreateFrameProxy(
routing_id, render_view_routing_id,
RenderFrameImpl::ResolveOpener(opener_routing_id), parent_routing_id,
replicated_state, devtools_frame_token);
}
void RenderThreadImpl::OnNetworkConnectionChanged(
net::NetworkChangeNotifier::ConnectionType type,
double max_bandwidth_mbps) {
bool online = type != net::NetworkChangeNotifier::CONNECTION_NONE;
WebNetworkStateNotifier::SetOnLine(online);
for (auto& observer : observers_)
observer.NetworkStateChanged(online);
WebNetworkStateNotifier::SetWebConnection(
NetConnectionTypeToWebConnectionType(type), max_bandwidth_mbps);
}
void RenderThreadImpl::OnNetworkQualityChanged(
net::EffectiveConnectionType type,
base::TimeDelta http_rtt,
base::TimeDelta transport_rtt,
double downlink_throughput_kbps) {
UMA_HISTOGRAM_BOOLEAN("NQE.RenderThreadNotified", true);
WebNetworkStateNotifier::SetNetworkQuality(
EffectiveConnectionTypeToWebEffectiveConnectionType(type), http_rtt,
transport_rtt, downlink_throughput_kbps);
}
void RenderThreadImpl::SetWebKitSharedTimersSuspended(bool suspend) {
#if defined(OS_ANDROID)
if (suspend) {
main_thread_scheduler_->PauseTimersForAndroidWebView();
} else {
main_thread_scheduler_->ResumeTimersForAndroidWebView();
}
webkit_shared_timer_suspended_ = suspend;
#else
NOTREACHED();
#endif
}
void RenderThreadImpl::UpdateScrollbarTheme(
mojom::UpdateScrollbarThemeParamsPtr params) {
#if defined(OS_MACOSX)
static_cast<WebScrollbarBehaviorImpl*>(
blink_platform_impl_->ScrollbarBehavior())
->set_jump_on_track_click(params->jump_on_track_click);
blink::WebScrollbarTheme::UpdateScrollbarsWithNSDefaults(
params->initial_button_delay, params->autoscroll_button_delay,
params->preferred_scroller_style, params->redraw,
params->button_placement);
is_elastic_overscroll_enabled_ = params->scroll_view_rubber_banding;
#else
NOTREACHED();
#endif
}
void RenderThreadImpl::OnSystemColorsChanged(
int32_t aqua_color_variant,
const std::string& highlight_text_color,
const std::string& highlight_color) {
#if defined(OS_MACOSX)
SystemColorsDidChange(aqua_color_variant, highlight_text_color,
highlight_color);
#else
NOTREACHED();
#endif
}
void RenderThreadImpl::PurgePluginListCache(bool reload_pages) {
#if BUILDFLAG(ENABLE_PLUGINS)
// 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 (auto& observer : observers_)
observer.PluginListChanged();
#else
NOTREACHED();
#endif
}
void RenderThreadImpl::OnMemoryPressure(
base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
TRACE_EVENT0("memory", "RenderThreadImpl::OnMemoryPressure");
if (blink_platform_impl_) {
blink::WebMemoryCoordinator::OnMemoryPressure(
static_cast<blink::WebMemoryPressureLevel>(memory_pressure_level));
}
if (memory_pressure_level ==
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL)
ReleaseFreeMemory();
}
void RenderThreadImpl::OnMemoryStateChange(base::MemoryState state) {
if (blink_platform_impl_) {
blink::WebMemoryCoordinator::OnMemoryStateChange(
static_cast<blink::MemoryState>(state));
}
}
void RenderThreadImpl::OnPurgeMemory() {
// Record amount of purged memory after 2 seconds. 2 seconds is arbitrary
// but it works most cases.
RendererMemoryMetrics metrics;
if (!GetRendererMemoryMetrics(&metrics))
return;
GetWebMainThreadScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RenderThreadImpl::RecordPurgeMemory,
base::Unretained(this), std::move(metrics)),
base::TimeDelta::FromSeconds(2));
OnTrimMemoryImmediately();
ReleaseFreeMemory();
if (blink_platform_impl_)
blink::WebMemoryCoordinator::OnPurgeMemory();
}
void RenderThreadImpl::RecordPurgeMemory(RendererMemoryMetrics before) {
RendererMemoryMetrics after;
if (!GetRendererMemoryMetrics(&after))
return;
int64_t mbytes = static_cast<int64_t>(before.total_allocated_mb) -
static_cast<int64_t>(after.total_allocated_mb);
if (mbytes < 0)
mbytes = 0;
UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.Experimental.Renderer.PurgedMemory",
mbytes);
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetMediaThreadTaskRunner() {
DCHECK(message_loop()->task_runner()->BelongsToCurrentThread());
if (!media_thread_) {
media_thread_.reset(new base::Thread("Media"));
media_thread_->Start();
}
return media_thread_->task_runner();
}
base::TaskRunner* RenderThreadImpl::GetWorkerTaskRunner() {
return categorized_worker_pool_.get();
}
scoped_refptr<viz::RasterContextProvider>
RenderThreadImpl::SharedCompositorWorkerContextProvider() {
DCHECK(IsMainThread());
// Try to reuse existing shared worker context provider.
if (shared_worker_context_provider_) {
// Note: If context is lost, delete reference after releasing the lock.
viz::RasterContextProvider::ScopedRasterContextLock lock(
shared_worker_context_provider_.get());
if (lock.RasterInterface()->GetGraphicsResetStatusKHR() == GL_NO_ERROR)
return shared_worker_context_provider_;
}
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host(
EstablishGpuChannelSync());
if (!gpu_channel_host) {
shared_worker_context_provider_ = nullptr;
return shared_worker_context_provider_;
}
bool support_locking = true;
bool support_oop_rasterization =
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableOOPRasterization);
bool support_gles2_interface = !support_oop_rasterization;
bool support_raster_interface = true;
bool support_grcontext = !support_oop_rasterization;
shared_worker_context_provider_ = CreateOffscreenContext(
std::move(gpu_channel_host), GetGpuMemoryBufferManager(),
gpu::SharedMemoryLimits(), support_locking, support_gles2_interface,
support_raster_interface, support_oop_rasterization, support_grcontext,
ui::command_buffer_metrics::RENDER_WORKER_CONTEXT, kGpuStreamIdWorker,
kGpuStreamPriorityWorker);
auto result = shared_worker_context_provider_->BindToCurrentThread();
if (result != gpu::ContextResult::kSuccess)
shared_worker_context_provider_ = nullptr;
return shared_worker_context_provider_;
}
void RenderThreadImpl::SampleGamepads(device::Gamepads* data) {
blink_platform_impl_->SampleGamepads(*data);
}
bool RenderThreadImpl::RendererIsHidden() const {
return widget_count_ > 0 && hidden_widget_count_ == widget_count_;
}
void RenderThreadImpl::WidgetCreated() {
bool renderer_was_hidden = RendererIsHidden();
widget_count_++;
if (renderer_was_hidden)
OnRendererVisible();
}
void RenderThreadImpl::WidgetDestroyed() {
// TODO(rmcilroy): Remove the restriction that destroyed widgets must be
// unhidden before WidgetDestroyed is called.
DCHECK_GT(widget_count_, 0);
DCHECK_GT(widget_count_, hidden_widget_count_);
widget_count_--;
if (RendererIsHidden())
OnRendererHidden();
}
void RenderThreadImpl::WidgetHidden() {
DCHECK_LT(hidden_widget_count_, widget_count_);
hidden_widget_count_++;
if (RendererIsHidden())
OnRendererHidden();
}
void RenderThreadImpl::WidgetRestored() {
bool renderer_was_hidden = RendererIsHidden();
DCHECK_GT(hidden_widget_count_, 0);
hidden_widget_count_--;
if (renderer_was_hidden)
OnRendererVisible();
}
void RenderThreadImpl::OnRendererHidden() {
blink::MainThreadIsolate()->IsolateInBackgroundNotification();
// TODO(rmcilroy): Remove IdleHandler and replace it with an IdleTask
// scheduled by the RendererScheduler - http://crbug.com/469210.
if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden())
return;
main_thread_scheduler_->SetRendererHidden(true);
ScheduleIdleHandler(kInitialIdleHandlerDelayMs);
}
void RenderThreadImpl::OnRendererVisible() {
blink::MainThreadIsolate()->IsolateInForegroundNotification();
if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden())
return;
main_thread_scheduler_->SetRendererHidden(false);
ScheduleIdleHandler(kLongIdleHandlerDelayMs);
}
void RenderThreadImpl::ReleaseFreeMemory() {
base::allocator::ReleaseFreeMemory();
discardable_shared_memory_manager_->ReleaseFreeMemory();
// Do not call into blink if it is not initialized.
if (blink_platform_impl_) {
// Purge Skia font cache, resource cache, and image filter.
SkGraphics::PurgeAllCaches();
blink::DecommitFreeableMemory();
}
}
RenderThreadImpl::PendingFrameCreate::PendingFrameCreate(
const service_manager::BindSourceInfo& browser_info,
int routing_id,
mojom::FrameRequest frame_request)
: browser_info_(browser_info),
routing_id_(routing_id),
frame_request_(std::move(frame_request)) {}
RenderThreadImpl::PendingFrameCreate::~PendingFrameCreate() {
}
void RenderThreadImpl::PendingFrameCreate::OnConnectionError() {
size_t erased =
RenderThreadImpl::current()->pending_frame_creates_.erase(routing_id_);
DCHECK_EQ(1u, erased);
}
void RenderThreadImpl::OnSyncMemoryPressure(
base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
if (!blink::MainThreadIsolate())
return;
v8::MemoryPressureLevel v8_memory_pressure_level =
static_cast<v8::MemoryPressureLevel>(memory_pressure_level);
#if !BUILDFLAG(ALLOW_CRITICAL_MEMORY_PRESSURE_HANDLING_IN_FOREGROUND)
// In order to reduce performance impact, translate critical level to
// moderate level for foreground renderer.
if (!RendererIsHidden() &&
v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
#endif // !BUILDFLAG(ALLOW_CRITICAL_MEMORY_PRESSURE_HANDLING_IN_FOREGROUND)
blink::MainThreadIsolate()->MemoryPressureNotification(
v8_memory_pressure_level);
blink::MemoryPressureNotificationToWorkerThreadIsolates(
v8_memory_pressure_level);
}
// Note that this would be called only when memory_coordinator is enabled.
// OnSyncMemoryPressure() is never called in that case.
void RenderThreadImpl::OnTrimMemoryImmediately() {
if (blink::MainThreadIsolate()) {
blink::MainThreadIsolate()->MemoryPressureNotification(
v8::MemoryPressureLevel::kCritical);
blink::MemoryPressureNotificationToWorkerThreadIsolates(
v8::MemoryPressureLevel::kCritical);
}
}
void RenderThreadImpl::OnRendererInterfaceRequest(
mojom::RendererAssociatedRequest request) {
DCHECK(!renderer_binding_.is_bound());
renderer_binding_.Bind(std::move(request),
GetWebMainThreadScheduler()->IPCTaskRunner());
}
bool RenderThreadImpl::NeedsToRecordFirstActivePaint(
int ttfap_metric_type) const {
if (ttfap_metric_type == RenderWidget::TTFAP_AFTER_PURGED)
return needs_to_record_first_active_paint_;
if (was_backgrounded_time_.is_min())
return false;
base::TimeDelta passed = base::TimeTicks::Now() - was_backgrounded_time_;
return passed.InMinutes() >= 5;
}
void RenderThreadImpl::SetRenderingColorSpace(
const gfx::ColorSpace& color_space) {
DCHECK(IsMainThread());
rendering_color_space_ = color_space;
for (const auto& factories : gpu_factories_) {
if (factories)
factories->SetRenderingColorSpace(color_space);
}
}
} // namespace content