blob: 2bb9b82da480fde9932123b6352a7493456ebfbf [file] [log] [blame]
// 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/debug/crash_logging.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/metrics/field_trial.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/sequenced_worker_pool.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/output/buffer_to_texture_target_map.h"
#include "cc/output/compositor_frame_sink.h"
#include "cc/output/copy_output_request.h"
#include "cc/output/vulkan_in_process_context_provider.h"
#include "cc/raster/task_graph_runner.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 "content/child/appcache/appcache_dispatcher.h"
#include "content/child/appcache/appcache_frontend_impl.h"
#include "content/child/blob_storage/blob_message_filter.h"
#include "content/child/child_histogram_message_filter.h"
#include "content/child/child_resource_message_filter.h"
#include "content/child/child_shared_bitmap_manager.h"
#include "content/child/content_child_helpers.h"
#include "content/child/db_message_filter.h"
#include "content/child/indexed_db/indexed_db_dispatcher.h"
#include "content/child/memory/child_memory_coordinator_impl.h"
#include "content/child/resource_dispatcher.h"
#include "content/child/resource_scheduling_filter.h"
#include "content/child/runtime_features.h"
#include "content/child/thread_safe_sender.h"
#include "content/child/web_database_observer_impl.h"
#include "content/child/worker_thread_registry.h"
#include "content/common/child_process_messages.h"
#include "content/common/content_constants_internal.h"
#include "content/common/dom_storage/dom_storage_messages.h"
#include "content/common/features.h"
#include "content/common/field_trial_recorder.mojom.h"
#include "content/common/frame_messages.h"
#include "content/common/frame_owner_properties.h"
#include "content/common/render_process_messages.h"
#include "content/common/resource_messages.h"
#include "content/common/site_isolation_policy.h"
#include "content/common/view_messages.h"
#include "content/common/worker_messages.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_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/service_names.mojom.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/browser_plugin/browser_plugin_manager.h"
#include "content/renderer/cache_storage/cache_storage_dispatcher.h"
#include "content/renderer/cache_storage/cache_storage_message_filter.h"
#include "content/renderer/categorized_worker_pool.h"
#include "content/renderer/devtools/devtools_agent_filter.h"
#include "content/renderer/dom_storage/dom_storage_dispatcher.h"
#include "content/renderer/dom_storage/webstoragearea_impl.h"
#include "content/renderer/dom_storage/webstoragenamespace_impl.h"
#include "content/renderer/gpu/compositor_external_begin_frame_source.h"
#include "content/renderer/gpu/compositor_forwarding_message_filter.h"
#include "content/renderer/gpu/frame_swap_message_queue.h"
#include "content/renderer/gpu/renderer_compositor_frame_sink.h"
#include "content/renderer/input/input_event_filter.h"
#include "content/renderer/input/input_handler_manager.h"
#include "content/renderer/input/main_thread_input_event_filter.h"
#include "content/renderer/media/audio_input_message_filter.h"
#include "content/renderer/media/audio_message_filter.h"
#include "content/renderer/media/audio_renderer_mixer_manager.h"
#include "content/renderer/media/media_stream_center.h"
#include "content/renderer/media/midi_message_filter.h"
#include "content/renderer/media/render_media_client.h"
#include "content/renderer/media/renderer_gpu_video_accelerator_factories.h"
#include "content/renderer/media/video_capture_impl_manager.h"
#include "content/renderer/net_info_helper.h"
#include "content/renderer/p2p/socket_dispatcher.h"
#include "content/renderer/render_frame_proxy.h"
#include "content/renderer/render_process_impl.h"
#include "content/renderer/render_view_impl.h"
#include "content/renderer/renderer_blink_platform_impl.h"
#include "content/renderer/scheduler/resource_dispatch_throttler.h"
#include "content/renderer/service_worker/embedded_worker_dispatcher.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_context_message_filter.h"
#include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
#include "gin/public/debug.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/shared_memory_limits.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_features.h"
#include "media/renderers/gpu_video_accelerator_factories.h"
#include "mojo/public/cpp/bindings/strong_binding.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/features/features.h"
#include "services/service_manager/public/cpp/connector.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "services/service_manager/public/cpp/interface_registry.h"
#include "services/ui/public/cpp/gpu/context_provider_command_buffer.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/WebKit/public/platform/WebCache.h"
#include "third_party/WebKit/public/platform/WebImageGenerator.h"
#include "third_party/WebKit/public/platform/WebMemoryCoordinator.h"
#include "third_party/WebKit/public/platform/WebNetworkStateNotifier.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/platform/WebThread.h"
#include "third_party/WebKit/public/platform/scheduler/child/compositor_worker_scheduler.h"
#include "third_party/WebKit/public/platform/scheduler/child/webthread_impl_for_worker_scheduler.h"
#include "third_party/WebKit/public/platform/scheduler/renderer/renderer_scheduler.h"
#include "third_party/WebKit/public/web/WebDatabase.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebKit.h"
#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
#include "third_party/WebKit/public/web/WebScriptController.h"
#include "third_party/WebKit/public/web/WebSecurityPolicy.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "third_party/skia/include/core/SkGraphics.h"
#include "ui/base/layout.h"
#include "ui/base/ui_base_switches.h"
#include "ui/display/display_switches.h"
#include "ui/gl/gl_switches.h"
#if defined(OS_ANDROID)
#include <cpu-features.h>
#include "content/renderer/android/synchronous_compositor_filter.h"
#include "content/renderer/android/synchronous_compositor_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/aec_dump_message_filter.h"
#include "content/renderer/media/peer_connection_tracker.h"
#include "content/renderer/media/rtc_peer_connection_handler.h"
#include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
#endif
#ifdef ENABLE_VTUNE_JIT_INTERFACE
#include "v8/src/third_party/vtune/v8-vtune.h"
#endif
#include "content/public/common/service_manager_connection.h"
#include "content/renderer/mus/render_widget_window_tree_client_factory.h"
#include "content/renderer/mus/renderer_window_tree_client.h"
#include "services/ui/public/cpp/gpu/gpu.h"
#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;
using blink::scheduler::WebThreadImplForWorkerScheduler;
namespace content {
namespace {
const int64_t kInitialIdleHandlerDelayMs = 1000;
const int64_t kLongIdleHandlerDelayMs = 30 * 1000;
#if defined(OS_ANDROID)
// On Android, resource messages can each take ~1.5ms to dispatch on the browser
// IO thread. Limiting the message rate to 3/frame at 60hz ensures that the
// induced work takes but a fraction (~1/4) of the overall frame budget.
const int kMaxResourceRequestsPerFlushWhenThrottled = 3;
#else
const int kMaxResourceRequestsPerFlushWhenThrottled = 8;
#endif
const double kThrottledResourceRequestFlushPeriodS = 1. / 60.;
// Maximum allocation size allowed for image scaling filters that
// require pre-scaling. Skia will fallback to a filter that doesn't
// require pre-scaling if the default filter would require an
// allocation that exceeds this limit.
const size_t kImageCacheSingleAllocationByteLimit = 64 * 1024 * 1024;
// Unique identifier for each output surface created.
uint32_t g_next_compositor_frame_sink_id = 1;
// 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;
// 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;
// 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::WebMemoryPressureLevelNone,
"blink::WebMemoryPressureLevelNone not align");
static_assert(static_cast<blink::WebMemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE) ==
blink::WebMemoryPressureLevelModerate,
"blink::WebMemoryPressureLevelModerate not align");
static_assert(static_cast<blink::WebMemoryPressureLevel>(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL) ==
blink::WebMemoryPressureLevelCritical,
"blink::WebMemoryPressureLevelCritical not align");
class WebThreadForCompositor : public WebThreadImplForWorkerScheduler {
public:
explicit WebThreadForCompositor(base::Thread::Options options)
: WebThreadImplForWorkerScheduler("Compositor", options) {
Init();
}
~WebThreadForCompositor() override {}
private:
// WebThreadImplForWorkerScheduler:
std::unique_ptr<blink::scheduler::WorkerScheduler> CreateWorkerScheduler()
override {
return base::MakeUnique<blink::scheduler::CompositorWorkerScheduler>(
thread());
}
DISALLOW_COPY_AND_ASSIGN(WebThreadForCompositor);
};
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:
FrameFactoryImpl() : routing_id_highmark_(-1) {}
private:
// mojom::FrameFactory:
void CreateFrame(int32_t frame_routing_id,
mojom::FrameRequest frame_request,
mojom::FrameHostPtr frame_host) 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(
frame_routing_id, std::move(frame_request), std::move(frame_host));
return;
}
frame->BindFrame(std::move(frame_request), std::move(frame_host));
}
private:
int32_t routing_id_highmark_;
};
void CreateFrameFactory(mojom::FrameFactoryRequest request) {
mojo::MakeStrongBinding(base::MakeUnique<FrameFactoryImpl>(),
std::move(request));
}
scoped_refptr<ui::ContextProviderCommandBuffer> CreateOffscreenContext(
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
const gpu::SharedMemoryLimits& limits,
bool support_locking,
ui::command_buffer_metrics::ContextType type,
int32_t stream_id,
gpu::GpuStreamPriority stream_priority) {
DCHECK(gpu_channel_host);
// This is used to create a few different offscreen contexts:
// - The shared main thread context (offscreen) used by blink for canvas.
// - The worker context (offscreen) used for GPU raster and video decoding.
// This is for an offscreen context, so the default framebuffer doesn't need
// alpha, depth, stencil, antialiasing.
gpu::gles2::ContextCreationAttribHelper 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;
const bool automatic_flushes = false;
return make_scoped_refptr(new ui::ContextProviderCommandBuffer(
std::move(gpu_channel_host), stream_id, stream_priority,
gpu::kNullSurfaceHandle,
GURL("chrome://gpu/RenderThreadImpl::CreateOffscreenContext/" +
ui::command_buffer_metrics::ContextTypeToString(type)),
automatic_flushes, support_locking, limits, attributes, nullptr, type));
}
bool IsRunningInMash() {
const base::CommandLine* cmdline = base::CommandLine::ForCurrentProcess();
return cmdline->HasSwitch(switches::kIsRunningInMash);
}
} // namespace
// For measuring memory usage after each task. Behind a command line flag.
class MemoryObserver : public base::MessageLoop::TaskObserver {
public:
MemoryObserver() {}
~MemoryObserver() override {}
void WillProcessTask(const base::PendingTask& pending_task) override {}
void DidProcessTask(const base::PendingTask& pending_task) override {
LOCAL_HISTOGRAM_MEMORY_KB("Memory.RendererUsed", GetMemoryUsageKB());
}
private:
DISALLOW_COPY_AND_ASSIGN(MemoryObserver);
};
RenderThreadImpl::HistogramCustomizer::HistogramCustomizer() {
custom_histograms_.insert("V8.MemoryExternalFragmentationTotal");
custom_histograms_.insert("V8.MemoryHeapSampleTotalCommitted");
custom_histograms_.insert("V8.MemoryHeapSampleTotalUsed");
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) {
std::unique_ptr<blink::scheduler::RendererScheduler> renderer_scheduler =
blink::scheduler::RendererScheduler::Create();
scoped_refptr<base::SingleThreadTaskRunner> test_task_counter;
return new RenderThreadImpl(
params, std::move(renderer_scheduler), test_task_counter);
}
// static
RenderThreadImpl* RenderThreadImpl::Create(
std::unique_ptr<base::MessageLoop> main_message_loop,
std::unique_ptr<blink::scheduler::RendererScheduler> renderer_scheduler) {
return new RenderThreadImpl(std::move(main_message_loop),
std::move(renderer_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
const scoped_refptr<mojom::ThreadSafeRenderMessageFilterAssociatedPtr>&
RenderThreadImpl::current_thread_safe_render_message_filter() {
DCHECK(current());
return current()->thread_safe_render_message_filter();
}
// static
void RenderThreadImpl::SetRenderMessageFilterForTesting(
mojom::RenderMessageFilter* render_message_filter) {
g_render_message_filter_for_testing = render_message_filter;
}
// 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::RendererScheduler> scheduler,
const scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue)
: ChildThreadImpl(Options::Builder()
.InBrowserProcess(params)
.AutoStartServiceManagerConnection(false)
.ConnectToBrowser(true)
.Build()),
renderer_scheduler_(std::move(scheduler)),
categorized_worker_pool_(new CategorizedWorkerPool()),
renderer_binding_(this),
client_id_(1),
field_trial_syncer_(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> main_message_loop,
std::unique_ptr<blink::scheduler::RendererScheduler> scheduler)
: ChildThreadImpl(Options::Builder()
.AutoStartServiceManagerConnection(false)
.ConnectToBrowser(true)
.Build()),
renderer_scheduler_(std::move(scheduler)),
main_message_loop_(std::move(main_message_loop)),
categorized_worker_pool_(new CategorizedWorkerPool()),
is_scroll_animator_enabled_(false),
is_surface_synchronization_enabled_(false),
renderer_binding_(this),
field_trial_syncer_(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");
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);
// Register this object as the main thread.
ChildProcess::current()->set_main_thread(this);
gpu_ = ui::Gpu::Create(
GetConnector(),
IsRunningInMash() ? ui::mojom::kServiceName : mojom::kBrowserServiceName,
GetIOTaskRunner());
channel()->GetThreadSafeRemoteAssociatedInterface(
&thread_safe_render_message_filter_);
shared_bitmap_manager_.reset(
new ChildSharedBitmapManager(thread_safe_render_message_filter_));
InitializeWebKit(resource_task_queue);
// 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(Get(), new AppCacheFrontendImpl()));
dom_storage_dispatcher_.reset(new DomStorageDispatcher());
main_thread_indexed_db_dispatcher_.reset(new IndexedDBDispatcher());
main_thread_cache_storage_dispatcher_.reset(
new CacheStorageDispatcher(thread_safe_sender()));
embedded_worker_dispatcher_.reset(new EmbeddedWorkerDispatcher());
// Note: This may reorder messages from the ResourceDispatcher with respect to
// other subsystems.
resource_dispatch_throttler_.reset(new ResourceDispatchThrottler(
static_cast<RenderThread*>(this), renderer_scheduler_.get(),
base::TimeDelta::FromSecondsD(kThrottledResourceRequestFlushPeriodS),
kMaxResourceRequestsPerFlushWhenThrottled));
resource_dispatcher()->set_message_sender(resource_dispatch_throttler_.get());
media_stream_center_ = nullptr;
blob_message_filter_ = new BlobMessageFilter(GetFileThreadTaskRunner());
AddFilter(blob_message_filter_.get());
db_message_filter_ = new DBMessageFilter();
AddFilter(db_message_filter_.get());
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)
audio_input_message_filter_ = new AudioInputMessageFilter(GetIOTaskRunner());
AddFilter(audio_input_message_filter_.get());
audio_message_filter_ = new AudioMessageFilter(GetIOTaskRunner());
AddFilter(audio_message_filter_.get());
midi_message_filter_ = new MidiMessageFilter(GetIOTaskRunner());
AddFilter(midi_message_filter_.get());
AddFilter((new CacheStorageMessageFilter(thread_safe_sender()))->GetFilter());
AddFilter((new ServiceWorkerContextMessageFilter())->GetFilter());
#if defined(USE_AURA)
if (IsRunningInMash()) {
CreateRenderWidgetWindowTreeClientFactory(GetServiceManagerConnection());
}
#endif
// Must be called before RenderThreadStarted() below.
StartServiceManagerConnection();
GetContentClient()->renderer()->RenderThreadStarted();
field_trial_syncer_.InitFieldTrialObserving(
*base::CommandLine::ForCurrentProcess(), switches::kSingleProcess);
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_surface_synchronization_enabled_ =
command_line.HasSwitch(cc::switches::kEnableSurfaceSynchronization);
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);
#if defined(OS_MACOSX)
base::ScopedCFTypeRef<CFStringRef> key(
base::SysUTF8ToCFStringRef("NSScrollViewRubberbanding"));
Boolean key_exists = false;
Boolean value = CFPreferencesGetAppBooleanValue(
key, kCFPreferencesCurrentApplication, &key_exists);
is_elastic_overscroll_enabled_ = !key_exists || value;
#else
is_elastic_overscroll_enabled_ = false;
#endif
std::string image_texture_target_string =
command_line.GetSwitchValueASCII(switches::kContentImageTextureTarget);
buffer_to_texture_target_map_ =
cc::StringToBufferToTextureTargetMap(image_texture_target_string);
if (command_line.HasSwitch(switches::kDisableLCDText)) {
is_lcd_text_enabled_ = false;
} else if (command_line.HasSwitch(switches::kEnableLCDText)) {
is_lcd_text_enabled_ = true;
} else {
#if defined(OS_ANDROID)
is_lcd_text_enabled_ = false;
#else
is_lcd_text_enabled_ = true;
#endif
}
is_gpu_rasterization_forced_ =
command_line.HasSwitch(switches::kForceGpuRasterization);
is_async_worker_context_enabled_ =
command_line.HasSwitch(switches::kEnableGpuAsyncWorkerContext);
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;
}
if (command_line.HasSwitch(switches::kDisableDistanceFieldText)) {
is_distance_field_text_enabled_ = false;
} else if (command_line.HasSwitch(switches::kEnableDistanceFieldText)) {
is_distance_field_text_enabled_ = true;
} else {
is_distance_field_text_enabled_ = false;
}
// Note that under Linux, the media library will normally already have
// been initialized by the Zygote before this instance became a Renderer.
media::InitializeMediaLibrary();
#if defined(OS_ANDROID)
if (!command_line.HasSwitch(switches::kDisableAcceleratedVideoDecode) &&
media::MediaCodecUtil::IsMediaCodecAvailable()) {
media::EnablePlatformDecoderSupport();
}
#endif
if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableHDR) ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableNewVp9CodecString)) {
media::EnableNewVp9CodecStringSupport();
}
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);
// TODO(vmpstr): If the flag sticks, we should clean it up and always have
// image decode tasks.
are_image_decode_tasks_enabled_ = true;
categorized_worker_pool_->Start(num_raster_threads);
discardable_memory::mojom::DiscardableSharedMemoryManagerPtr manager_ptr;
if (IsRunningInMash()) {
#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_ = base::MakeUnique<
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());
GetContentClient()->renderer()->ExposeInterfacesToBrowser(
GetInterfaceRegistry());
GetInterfaceRegistry()->AddInterface(base::Bind(&CreateFrameFactory));
GetInterfaceRegistry()->AddInterface(
base::Bind(&EmbeddedWorkerInstanceClientImpl::Create,
base::Unretained(embedded_worker_dispatcher_.get())));
GetConnector()->BindInterface(mojom::kBrowserServiceName,
mojo::MakeRequest(&storage_partition_service_));
#if defined(OS_LINUX)
ChildProcess::current()->SetIOThreadPriority(base::ThreadPriority::DISPLAY);
ChildThreadImpl::current()->SetThreadPriority(
categorized_worker_pool_->background_worker_thread_id(),
base::ThreadPriority::BACKGROUND);
#endif
record_purge_suspend_metric_closure_.Reset(base::Bind(
&RenderThreadImpl::RecordPurgeAndSuspendMetrics, base::Unretained(this)));
record_purge_suspend_growth_metric_closure_.Reset(
base::Bind(&RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics,
base::Unretained(this)));
needs_to_record_first_active_paint_ = false;
base::MemoryCoordinatorClientRegistry::GetInstance()->Register(this);
// If this renderer doesn't run inside the browser process, enable
// SequencedWorkerPool. Otherwise, it should already have been enabled.
// TODO(fdoray): Remove this once the SequencedWorkerPool to TaskScheduler
// redirection experiment concludes https://crbug.com/622400.
if (!command_line.HasSwitch(switches::kSingleProcess))
base::SequencedWorkerPool::EnableForProcess();
}
RenderThreadImpl::~RenderThreadImpl() {
}
void RenderThreadImpl::Shutdown() {
// 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();
// 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;
}
}
if (pumping_events) {
renderer_scheduler_->SuspendTimerQueue();
WebView::willEnterModalLoop();
}
bool rv = ChildThreadImpl::Send(msg);
if (pumping_events) {
WebView::didExitModalLoop();
renderer_scheduler_->ResumeTimerQueue();
}
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();
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetIOTaskRunner() {
return ChildProcess::current()->io_task_runner();
}
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->TakeFrameRequest(), it->second->TakeFrameHost());
pending_frame_creates_.erase(it);
}
void RenderThreadImpl::RemoveRoute(int32_t routing_id) {
ChildThreadImpl::GetRouter()->RemoveRoute(routing_id);
}
void RenderThreadImpl::AddEmbeddedWorkerRoute(int32_t routing_id,
IPC::Listener* listener) {
AddRoute(routing_id, listener);
if (devtools_agent_message_filter_.get()) {
devtools_agent_message_filter_->AddEmbeddedWorkerRouteOnMainThread(
routing_id);
}
}
void RenderThreadImpl::RemoveEmbeddedWorkerRoute(int32_t routing_id) {
RemoveRoute(routing_id);
if (devtools_agent_message_filter_.get()) {
devtools_agent_message_filter_->RemoveEmbeddedWorkerRouteOnMainThread(
routing_id);
}
}
void RenderThreadImpl::RegisterPendingFrameCreate(
int routing_id,
mojom::FrameRequest frame_request,
mojom::FrameHostPtr frame_host) {
std::pair<PendingFrameCreateMap::iterator, bool> result =
pending_frame_creates_.insert(std::make_pair(
routing_id,
make_scoped_refptr(new PendingFrameCreate(
routing_id, std::move(frame_request), std::move(frame_host)))));
CHECK(result.second) << "Inserting a duplicate item.";
}
mojom::StoragePartitionService* RenderThreadImpl::GetStoragePartitionService() {
return storage_partition_service_.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() {
base::Thread::Options options;
#if defined(OS_ANDROID)
options.priority = base::ThreadPriority::DISPLAY;
#endif
compositor_thread_.reset(new WebThreadForCompositor(options));
blink_platform_impl_->SetCompositorThread(compositor_thread_.get());
compositor_task_runner_ = compositor_thread_->GetTaskRunner();
compositor_task_runner_->PostTask(
FROM_HERE,
base::Bind(base::IgnoreResult(&ThreadRestrictions::SetIOAllowed), false));
#if defined(OS_LINUX)
ChildThreadImpl::current()->SetThreadPriority(compositor_thread_->threadId(),
base::ThreadPriority::DISPLAY);
#endif
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, renderer_scheduler_.get()));
}
void RenderThreadImpl::InitializeWebKit(
const scoped_refptr<base::SingleThreadTaskRunner>& resource_task_queue) {
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
SetRuntimeFeaturesDefaultsAndUpdateFromArgs(command_line);
GetContentClient()
->renderer()
->SetRuntimeFeaturesDefaultsBeforeBlinkInitialization();
blink_platform_impl_.reset(new RendererBlinkPlatformImpl(
renderer_scheduler_.get(), GetConnector()->GetWeakPtr()));
blink::initialize(blink_platform_impl_.get());
v8::Isolate* isolate = blink::mainThreadIsolate();
isolate->SetCreateHistogramFunction(CreateHistogram);
isolate->SetAddHistogramSampleFunction(AddHistogramSample);
renderer_scheduler_->SetRAILModeObserver(this);
main_thread_compositor_task_runner_ =
renderer_scheduler_->CompositorTaskRunner();
main_input_callback_.Reset(
base::Bind(base::IgnoreResult(&RenderThreadImpl::OnMessageReceived),
base::Unretained(this)));
scoped_refptr<base::SingleThreadTaskRunner> resource_task_queue2;
if (resource_task_queue) {
resource_task_queue2 = resource_task_queue;
} else {
resource_task_queue2 = renderer_scheduler_->LoadingTaskRunner();
}
// Add a filter that forces resource messages to be dispatched via a
// particular task runner.
scoped_refptr<ResourceSchedulingFilter> filter(
new ResourceSchedulingFilter(
resource_task_queue2, resource_dispatcher()));
channel()->AddFilter(filter.get());
resource_dispatcher()->SetResourceSchedulingFilter(filter);
// The ChildResourceMessageFilter and the ResourceDispatcher need to use the
// same queue to ensure tasks are executed in the expected order.
child_resource_message_filter()->SetMainThreadTaskRunner(
resource_task_queue2);
resource_dispatcher()->SetMainThreadTaskRunner(resource_task_queue2);
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();
compositor_message_filter_ = new CompositorForwardingMessageFilter(
compositor_impl_side_task_runner.get());
AddFilter(compositor_message_filter_.get());
RenderThreadImpl::RegisterSchemes();
RenderMediaClient::Initialize();
devtools_agent_message_filter_ = new DevToolsAgentFilter();
AddFilter(devtools_agent_message_filter_.get());
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();
}
renderer_scheduler_->SetTimerQueueSuspensionWhenBackgroundedEnabled(
GetContentClient()
->renderer()
->AllowTimerSuspensionWhenProcessBackgrounded());
SkGraphics::SetResourceCacheSingleAllocationByteLimit(
kImageCacheSingleAllocationByteLimit);
// Hook up blink's codecs so skia can call them
SkGraphics::SetImageGeneratorFromEncodedDataFactory(
blink::WebImageGenerator::create);
if (command_line.HasSwitch(switches::kMemoryMetrics)) {
memory_observer_.reset(new MemoryObserver());
message_loop()->AddTaskObserver(memory_observer_.get());
}
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);
}
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);
}
cc::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()) {
scoped_refptr<ui::ContextProviderCommandBuffer> shared_context_provider =
gpu_factories_.back()->ContextProviderMainThread();
if (shared_context_provider) {
cc::ContextProvider::ScopedContextLock lock(
shared_context_provider.get());
if (lock.ContextGL()->GetGraphicsResetStatusKHR() == GL_NO_ERROR) {
return gpu_factories_.back().get();
} else {
scoped_refptr<base::SingleThreadTaskRunner> media_task_runner =
GetMediaThreadTaskRunner();
media_task_runner->PostTask(
FROM_HERE,
base::Bind(
base::IgnoreResult(
&RendererGpuVideoAcceleratorFactories::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 = true;
scoped_refptr<ui::ContextProviderCommandBuffer> media_context_provider =
CreateOffscreenContext(gpu_channel_host, limits, support_locking,
ui::command_buffer_metrics::MEDIA_CONTEXT,
gpu::GPU_STREAM_DEFAULT,
gpu::GpuStreamPriority::NORMAL);
if (!media_context_provider->BindToCurrentThread())
return nullptr;
scoped_refptr<base::SingleThreadTaskRunner> media_task_runner =
GetMediaThreadTaskRunner();
const bool enable_video_accelerator =
!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode);
const bool enable_gpu_memory_buffer_video_frames =
#if defined(OS_MACOSX) || defined(OS_LINUX)
!cmd_line->HasSwitch(switches::kDisableGpuMemoryBufferVideoFrames) &&
!cmd_line->HasSwitch(switches::kDisableGpuCompositing) &&
!gpu_channel_host->gpu_info().software_rendering;
#else
cmd_line->HasSwitch(switches::kEnableGpuMemoryBufferVideoFrames);
#endif
gpu_factories_.push_back(RendererGpuVideoAcceleratorFactories::Create(
std::move(gpu_channel_host), base::ThreadTaskRunnerHandle::Get(),
media_task_runner, std::move(media_context_provider),
enable_gpu_memory_buffer_video_frames, buffer_to_texture_target_map_,
enable_video_accelerator));
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;
shared_main_thread_contexts_ = CreateOffscreenContext(
std::move(gpu_channel_host), gpu::SharedMemoryLimits(), support_locking,
ui::command_buffer_metrics::RENDERER_MAINTHREAD_CONTEXT,
gpu::GPU_STREAM_DEFAULT, gpu::GpuStreamPriority::NORMAL);
if (!shared_main_thread_contexts_->BindToCurrentThread())
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 sync_compositor_message_filter_.get();
}
#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_;
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetTimerTaskRunner() {
return renderer_scheduler_->TimerTaskRunner();
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetLoadingTaskRunner() {
return renderer_scheduler_->LoadingTaskRunner();
}
void RenderThreadImpl::SetFieldTrialGroup(const std::string& trial_name,
const std::string& group_name) {
field_trial_syncer_.OnSetFieldTrialGroup(trial_name, group_name);
}
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));
}
bool RenderThreadImpl::IsGpuRasterizationForced() {
return is_gpu_rasterization_forced_;
}
bool RenderThreadImpl::IsAsyncWorkerContextEnabled() {
return is_async_worker_context_enabled_;
}
int RenderThreadImpl::GetGpuRasterizationMSAASampleCount() {
return gpu_rasterization_msaa_sample_count_;
}
bool RenderThreadImpl::IsLcdTextEnabled() {
return is_lcd_text_enabled_;
}
bool RenderThreadImpl::IsDistanceFieldTextEnabled() {
return is_distance_field_text_enabled_;
}
bool RenderThreadImpl::IsZeroCopyEnabled() {
return is_zero_copy_enabled_;
}
bool RenderThreadImpl::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_;
}
const cc::BufferToTextureTargetMap&
RenderThreadImpl::GetBufferToTextureTargetMap() {
return buffer_to_texture_target_map_;
}
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::RendererScheduler* RenderThreadImpl::GetRendererScheduler() {
return renderer_scheduler_.get();
}
std::unique_ptr<cc::BeginFrameSource>
RenderThreadImpl::CreateExternalBeginFrameSource(int routing_id) {
const base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
if (cmd->HasSwitch(switches::kDisableGpuVsync)) {
std::string display_vsync_string =
cmd->GetSwitchValueASCII(switches::kDisableGpuVsync);
if (display_vsync_string != "gpu") {
// 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.)
base::SingleThreadTaskRunner* compositor_impl_side_task_runner =
compositor_task_runner_ ? compositor_task_runner_.get()
: base::ThreadTaskRunnerHandle::Get().get();
return base::MakeUnique<cc::BackToBackBeginFrameSource>(
base::MakeUnique<cc::DelayBasedTimeSource>(
compositor_impl_side_task_runner));
}
}
return base::MakeUnique<CompositorExternalBeginFrameSource>(
compositor_message_filter_.get(), sync_message_filter(), routing_id);
}
cc::TaskGraphRunner* RenderThreadImpl::GetTaskGraphRunner() {
return categorized_worker_pool_->GetTaskGraphRunner();
}
bool RenderThreadImpl::AreImageDecodeTasksEnabled() {
return are_image_decode_tasks_enabled_;
}
bool RenderThreadImpl::IsThreadedAnimationEnabled() {
return is_threaded_animation_enabled_;
}
bool RenderThreadImpl::IsScrollAnimatorEnabled() {
return is_scroll_animator_enabled_;
}
bool RenderThreadImpl::IsSurfaceSynchronizationEnabled() {
return is_surface_synchronization_enabled_;
}
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();
}
bool RenderThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
for (auto& observer : observers_) {
if (observer.OnControlMessageReceived(msg))
return true;
}
// Some messages are handled by delegates.
if (appcache_dispatcher_->OnMessageReceived(msg) ||
dom_storage_dispatcher_->OnMessageReceived(msg) ||
embedded_worker_dispatcher_->OnMessageReceived(msg)) {
return true;
}
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderThreadImpl, msg)
IPC_MESSAGE_HANDLER(WorkerProcessMsg_CreateWorker, OnCreateNewSharedWorker)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void RenderThreadImpl::OnProcessBackgrounded(bool backgrounded) {
ChildThreadImpl::OnProcessBackgrounded(backgrounded);
if (backgrounded) {
renderer_scheduler_->OnRendererBackgrounded();
needs_to_record_first_active_paint_ = false;
} else {
renderer_scheduler_->OnRendererForegrounded();
record_purge_suspend_metric_closure_.Cancel();
record_purge_suspend_metric_closure_.Reset(
base::Bind(&RenderThreadImpl::RecordPurgeAndSuspendMetrics,
base::Unretained(this)));
record_purge_suspend_growth_metric_closure_.Cancel();
record_purge_suspend_growth_metric_closure_.Reset(
base::Bind(&RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics,
base::Unretained(this)));
}
}
void RenderThreadImpl::OnProcessPurgeAndSuspend() {
ChildThreadImpl::OnProcessPurgeAndSuspend();
if (!RendererIsHidden())
return;
if (base::FeatureList::IsEnabled(features::kPurgeAndSuspend)) {
base::MemoryCoordinatorClientRegistry::GetInstance()->PurgeMemory();
}
// Since purging is not a synchronous task (e.g. v8 GC, oilpan GC, ...),
// we need to wait until the task is finished. So wait 15 seconds and
// update purge+suspend UMA histogram.
// TODO(tasak): use MemoryCoordinator's callback to report purge+suspend
// UMA when MemoryCoordinator is available.
GetRendererScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE, record_purge_suspend_metric_closure_.callback(),
base::TimeDelta::FromSeconds(15));
needs_to_record_first_active_paint_ = true;
}
// TODO(tasak): Replace the following GetMallocUsage() with memory-infra
// when it is possible to run memory-infra without tracing.
#if defined(OS_WIN)
namespace {
static size_t GetMallocUsage() {
// Iterate through whichever heap the CRT is using.
HANDLE crt_heap = reinterpret_cast<HANDLE>(_get_heap_handle());
if (crt_heap == NULL)
return 0;
if (!::HeapLock(crt_heap))
return 0 ;
size_t malloc_usage = 0;
PROCESS_HEAP_ENTRY heap_entry;
heap_entry.lpData = NULL;
while (::HeapWalk(crt_heap, &heap_entry) != 0) {
if ((heap_entry.wFlags & PROCESS_HEAP_ENTRY_BUSY) != 0)
malloc_usage += heap_entry.cbData;
}
::HeapUnlock(crt_heap);
return malloc_usage;
}
} // namespace
#elif defined(OS_MACOSX) || defined(OS_IOS)
namespace {
static size_t GetMallocUsage() {
malloc_statistics_t stats = {0};
malloc_zone_statistics(nullptr, &stats);
return stats.size_in_use;
}
} // namespace
#endif
void RenderThreadImpl::GetRendererMemoryMetrics(
RendererMemoryMetrics* memory_metrics) const {
DCHECK(memory_metrics);
blink::WebMemoryStatistics blink_stats = blink::WebMemoryStatistics::Get();
memory_metrics->partition_alloc_kb =
blink_stats.partitionAllocTotalAllocatedBytes / 1024;
memory_metrics->blink_gc_kb = blink_stats.blinkGCTotalAllocatedBytes / 1024;
#if defined(OS_LINUX) || defined(OS_ANDROID)
struct mallinfo minfo = mallinfo();
#if defined(USE_TCMALLOC)
size_t malloc_usage = minfo.uordblks;
#else
size_t malloc_usage = minfo.hblkhd + minfo.arena;
#endif
#else
size_t malloc_usage = GetMallocUsage();
#endif
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.partitionAllocTotalAllocatedBytes +
blink_stats.blinkGCTotalAllocatedBytes +
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 / RenderView::GetRenderViewCount() / 1024 / 1024;
}
// TODO(tasak): Once it is possible to use memory-infra without tracing,
// we should collect the metrics using memory-infra.
// TODO(tasak): We should also report a difference between the memory usages
// before and after purging by using memory-infra.
void RenderThreadImpl::RecordPurgeAndSuspendMetrics() {
// If this renderer is resumed, we should not update UMA.
if (!RendererIsHidden())
return;
// TODO(tasak): Compare memory metrics between purge-enabled renderers and
// purge-disabled renderers (A/B testing).
RendererMemoryMetrics memory_metrics;
GetRendererMemoryMetrics(&memory_metrics);
UMA_HISTOGRAM_MEMORY_KB("PurgeAndSuspend.Memory.PartitionAllocKB",
memory_metrics.partition_alloc_kb);
UMA_HISTOGRAM_MEMORY_KB("PurgeAndSuspend.Memory.BlinkGCKB",
memory_metrics.blink_gc_kb);
UMA_HISTOGRAM_MEMORY_MB("PurgeAndSuspend.Memory.MallocMB",
memory_metrics.malloc_mb);
UMA_HISTOGRAM_MEMORY_KB("PurgeAndSuspend.Memory.DiscardableKB",
memory_metrics.discardable_kb);
UMA_HISTOGRAM_MEMORY_MB("PurgeAndSuspend.Memory.V8MainThreadIsolateMB",
memory_metrics.v8_main_thread_isolate_mb);
UMA_HISTOGRAM_MEMORY_MB("PurgeAndSuspend.Memory.TotalAllocatedMB",
memory_metrics.total_allocated_mb);
purge_and_suspend_memory_metrics_ = memory_metrics;
// record how many memory usage increases after purged.
GetRendererScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE, record_purge_suspend_growth_metric_closure_.callback(),
base::TimeDelta::FromMinutes(5));
GetRendererScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE, record_purge_suspend_growth_metric_closure_.callback(),
base::TimeDelta::FromMinutes(10));
GetRendererScheduler()->DefaultTaskRunner()->PostDelayedTask(
FROM_HERE, record_purge_suspend_growth_metric_closure_.callback(),
base::TimeDelta::FromMinutes(15));
}
#define GET_MEMORY_GROWTH(current, previous, allocator) \
(current.allocator > previous.allocator \
? current.allocator - previous.allocator \
: 0)
void RenderThreadImpl::RecordPurgeAndSuspendMemoryGrowthMetrics() const {
// If this renderer is resumed, we should not update UMA.
if (!RendererIsHidden())
return;
RendererMemoryMetrics memory_metrics;
GetRendererMemoryMetrics(&memory_metrics);
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.PartitionAllocKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
partition_alloc_kb));
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.BlinkGCKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
blink_gc_kb));
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.MallocKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
malloc_mb) * 1024);
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.DiscardableKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
discardable_kb));
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.V8MainThreadIsolateKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
v8_main_thread_isolate_mb) * 1024);
UMA_HISTOGRAM_MEMORY_KB(
"PurgeAndSuspend.Experimental.MemoryGrowth.TotalAllocatedKB",
GET_MEMORY_GROWTH(memory_metrics, purge_and_suspend_memory_metrics_,
total_allocated_mb) * 1024);
}
scoped_refptr<gpu::GpuChannelHost> RenderThreadImpl::EstablishGpuChannelSync() {
TRACE_EVENT0("gpu", "RenderThreadImpl::EstablishGpuChannelSync");
if (gpu_channel_) {
// Do nothing if we already have a GPU channel or are already
// establishing one.
if (!gpu_channel_->IsLost())
return gpu_channel_;
// Recreate the channel if it has been lost.
gpu_channel_->DestroyChannel();
gpu_channel_ = nullptr;
}
gpu_channel_ = gpu_->EstablishGpuChannelSync();
if (gpu_channel_)
GetContentClient()->SetGpuInfo(gpu_channel_->gpu_info());
return gpu_channel_;
}
void RenderThreadImpl::RequestNewCompositorFrameSink(
bool use_software,
int routing_id,
scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue,
const GURL& url,
const CompositorFrameSinkCallback& callback) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kDisableGpuCompositing))
use_software = true;
#if defined(USE_AURA)
if (!use_software && IsRunningInMash()) {
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)
->RequestCompositorFrameSink(
gpu_->CreateContextProvider(std::move(channel)),
GetGpuMemoryBufferManager(), callback);
return;
}
#endif
uint32_t compositor_frame_sink_id = g_next_compositor_frame_sink_id++;
if (command_line.HasSwitch(switches::kEnableVulkan)) {
scoped_refptr<cc::VulkanContextProvider> vulkan_context_provider =
cc::VulkanInProcessContextProvider::Create();
if (vulkan_context_provider) {
DCHECK(!layout_test_mode());
callback.Run(base::MakeUnique<RendererCompositorFrameSink>(
routing_id, compositor_frame_sink_id,
CreateExternalBeginFrameSource(routing_id),
std::move(vulkan_context_provider),
std::move(frame_swap_message_queue)));
return;
}
}
// Create a gpu process channel and verify we want to use GPU compositing
// before creating any context providers.
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host;
if (!use_software) {
gpu_channel_host = EstablishGpuChannelSync();
if (!gpu_channel_host) {
// Cause the compositor to wait and try again.
callback.Run(nullptr);
return;
}
// We may get a valid channel, but with a software renderer. In that case,
// disable GPU compositing.
if (gpu_channel_host->gpu_info().software_rendering)
use_software = true;
}
if (use_software) {
DCHECK(!layout_test_mode());
callback.Run(base::MakeUnique<RendererCompositorFrameSink>(
routing_id, compositor_frame_sink_id,
CreateExternalBeginFrameSource(routing_id), nullptr, nullptr, nullptr,
shared_bitmap_manager(), std::move(frame_swap_message_queue)));
return;
}
scoped_refptr<ui::ContextProviderCommandBuffer> 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::gles2::ContextCreationAttribHelper 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;
constexpr bool automatic_flushes = false;
constexpr bool support_locking = false;
// The compositor context shares resources with the worker context unless
// the worker is async.
ui::ContextProviderCommandBuffer* share_context =
worker_context_provider.get();
if (IsAsyncWorkerContextEnabled())
share_context = nullptr;
scoped_refptr<ui::ContextProviderCommandBuffer> context_provider(
new ui::ContextProviderCommandBuffer(
gpu_channel_host, gpu::GPU_STREAM_DEFAULT,
gpu::GpuStreamPriority::NORMAL, gpu::kNullSurfaceHandle, url,
automatic_flushes, support_locking, limits, attributes, share_context,
ui::command_buffer_metrics::RENDER_COMPOSITOR_CONTEXT));
if (layout_test_deps_) {
callback.Run(layout_test_deps_->CreateCompositorFrameSink(
routing_id, std::move(gpu_channel_host), std::move(context_provider),
std::move(worker_context_provider), GetGpuMemoryBufferManager(), this));
return;
}
#if defined(OS_ANDROID)
if (sync_compositor_message_filter_) {
callback.Run(base::MakeUnique<SynchronousCompositorFrameSink>(
std::move(context_provider), std::move(worker_context_provider),
GetGpuMemoryBufferManager(), shared_bitmap_manager(), routing_id,
compositor_frame_sink_id, CreateExternalBeginFrameSource(routing_id),
sync_compositor_message_filter_.get(),
std::move(frame_swap_message_queue)));
return;
}
#endif
callback.Run(base::WrapUnique(new RendererCompositorFrameSink(
routing_id, compositor_frame_sink_id,
CreateExternalBeginFrameSource(routing_id), std::move(context_provider),
std::move(worker_context_provider), GetGpuMemoryBufferManager(), nullptr,
std::move(frame_swap_message_queue))));
}
AssociatedInterfaceRegistry*
RenderThreadImpl::GetAssociatedInterfaceRegistry() {
return &associated_interfaces_;
}
std::unique_ptr<cc::SwapPromise>
RenderThreadImpl::RequestCopyOfOutputForLayoutTest(
int32_t routing_id,
std::unique_ptr<cc::CopyOutputRequest> request) {
DCHECK(layout_test_deps_);
return layout_test_deps_->RequestCopyOfOutput(routing_id, std::move(request));
}
blink::WebMediaStreamCenter* RenderThreadImpl::CreateMediaStreamCenter(
blink::WebMediaStreamCenterClient* client) {
#if BUILDFLAG(ENABLE_WEBRTC)
if (!media_stream_center_) {
media_stream_center_ = GetContentClient()->renderer()
->OverrideCreateWebMediaStreamCenter(client);
if (!media_stream_center_) {
std::unique_ptr<MediaStreamCenter> media_stream_center(
new MediaStreamCenter(client, GetPeerConnectionDependencyFactory()));
media_stream_center_ = media_stream_center.release();
}
}
#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();
}
const scoped_refptr<mojom::ThreadSafeRenderMessageFilterAssociatedPtr>&
RenderThreadImpl::thread_safe_render_message_filter() {
return thread_safe_render_message_filter_;
}
gpu::GpuChannelHost* RenderThreadImpl::GetGpuChannel() {
if (!gpu_channel_)
return nullptr;
if (gpu_channel_->IsLost())
return nullptr;
return gpu_channel_.get();
}
void RenderThreadImpl::OnFieldTrialGroupFinalized(
const std::string& trial_name,
const std::string& group_name) {
mojom::FieldTrialRecorderPtr field_trial_recorder;
GetConnector()->BindInterface(mojom::kBrowserServiceName,
&field_trial_recorder);
field_trial_recorder->FieldTrialActivated(trial_name);
}
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, *params,
RenderWidget::ShowCallback());
}
void RenderThreadImpl::CreateFrame(mojom::CreateFrameParamsPtr params) {
// Debug cases of https://crbug.com/626802.
base::debug::SetCrashKeyValue("newframe_routing_id",
base::IntToString(params->routing_id));
base::debug::SetCrashKeyValue("newframe_proxy_id",
base::IntToString(params->proxy_routing_id));
base::debug::SetCrashKeyValue("newframe_opener_id",
base::IntToString(params->opener_routing_id));
base::debug::SetCrashKeyValue("newframe_parent_id",
base::IntToString(params->parent_routing_id));
base::debug::SetCrashKeyValue("newframe_widget_id",
base::IntToString(
params->widget_params->routing_id));
base::debug::SetCrashKeyValue("newframe_widget_hidden",
params->widget_params->hidden ? "yes" : "no");
base::debug::SetCrashKeyValue("newframe_replicated_origin",
params->replication_state.origin.Serialize());
base::debug::SetCrashKeyValue("newframe_oopifs_possible",
SiteIsolationPolicy::AreCrossProcessFramesPossible() ? "yes" : "no");
CompositorDependencies* compositor_deps = this;
RenderFrameImpl::CreateFrame(
params->routing_id, params->proxy_routing_id, params->opener_routing_id,
params->parent_routing_id, params->previous_sibling_routing_id,
params->replication_state, compositor_deps, *params->widget_params,
params->frame_owner_properties);
}
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) {
// Debug cases of https://crbug.com/575245.
base::debug::SetCrashKeyValue("newproxy_proxy_id",
base::IntToString(routing_id));
base::debug::SetCrashKeyValue("newproxy_view_id",
base::IntToString(render_view_routing_id));
base::debug::SetCrashKeyValue("newproxy_opener_id",
base::IntToString(opener_routing_id));
base::debug::SetCrashKeyValue("newproxy_parent_id",
base::IntToString(parent_routing_id));
RenderFrameProxy::CreateFrameProxy(
routing_id, render_view_routing_id,
RenderFrameImpl::ResolveOpener(opener_routing_id), parent_routing_id,
replicated_state);
}
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::SetWebKitSharedTimersSuspended(bool suspend) {
#if defined(OS_ANDROID)
if (suspend) {
renderer_scheduler_->SuspendTimerQueue();
} else {
renderer_scheduler_->ResumeTimerQueue();
}
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);
#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::OnCreateNewSharedWorker(
const WorkerProcessMsg_CreateWorker_Params& params) {
// EmbeddedSharedWorkerStub will self-destruct.
new EmbeddedSharedWorkerStub(
params.url, params.name, params.content_security_policy,
params.security_policy_type, params.creation_address_space,
params.pause_on_start, params.route_id);
}
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();
ClearMemory();
}
}
void RenderThreadImpl::OnMemoryStateChange(base::MemoryState state) {
if (blink_platform_impl_) {
blink::WebMemoryCoordinator::onMemoryStateChange(
static_cast<blink::MemoryState>(state));
}
}
void RenderThreadImpl::OnPurgeMemory() {
OnTrimMemoryImmediately();
ReleaseFreeMemory();
ClearMemory();
if (blink_platform_impl_)
blink::WebMemoryCoordinator::onPurgeMemory();
}
void RenderThreadImpl::ClearMemory() {
// Do not call into blink if it is not initialized.
if (blink_platform_impl_) {
// Purge Skia font cache, by setting it to 0 and then again to the
// previous limit.
size_t font_cache_limit = SkGraphics::SetFontCacheLimit(0);
SkGraphics::SetFontCacheLimit(font_cache_limit);
}
}
scoped_refptr<base::SingleThreadTaskRunner>
RenderThreadImpl::GetFileThreadTaskRunner() {
DCHECK(message_loop()->task_runner()->BelongsToCurrentThread());
if (!file_thread_) {
file_thread_.reset(new base::Thread("Renderer::FILE"));
file_thread_->Start();
}
return file_thread_->task_runner();
}
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<ui::ContextProviderCommandBuffer>
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.
cc::ContextProvider::ScopedContextLock lock(
shared_worker_context_provider_.get());
if (shared_worker_context_provider_->ContextGL()
->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_;
}
int32_t stream_id = gpu::GPU_STREAM_DEFAULT;
gpu::GpuStreamPriority stream_priority = gpu::GpuStreamPriority::NORMAL;
if (is_async_worker_context_enabled_) {
stream_id = gpu_channel_host->GenerateStreamID();
stream_priority = gpu::GpuStreamPriority::LOW;
}
bool support_locking = true;
shared_worker_context_provider_ = CreateOffscreenContext(
std::move(gpu_channel_host), gpu::SharedMemoryLimits(), support_locking,
ui::command_buffer_metrics::RENDER_WORKER_CONTEXT, stream_id,
stream_priority);
if (!shared_worker_context_provider_->BindToCurrentThread())
shared_worker_context_provider_ = nullptr;
return shared_worker_context_provider_;
}
void RenderThreadImpl::SampleGamepads(blink::WebGamepads* 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;
ScheduleIdleHandler(kInitialIdleHandlerDelayMs);
}
void RenderThreadImpl::OnRendererVisible() {
blink::mainThreadIsolate()->IsolateInForegroundNotification();
if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden())
return;
ScheduleIdleHandler(kLongIdleHandlerDelayMs);
}
void RenderThreadImpl::ReleaseFreeMemory() {
base::allocator::ReleaseFreeMemory();
discardable_shared_memory_manager_->ReleaseFreeMemory();
if (blink_platform_impl_)
blink::decommitFreeableMemory();
}
RenderThreadImpl::PendingFrameCreate::PendingFrameCreate(
int routing_id,
mojom::FrameRequest frame_request,
mojom::FrameHostPtr frame_host)
: routing_id_(routing_id),
frame_request_(std::move(frame_request)),
frame_host_(std::move(frame_host)) {
// The RenderFrame may be deleted before the CreateFrame message is received.
// In that case, the RenderFrameHost should cancel the create, which is
// detected by setting an error handler on |frame_host_|.
frame_host_.set_connection_error_handler(base::Bind(
&RenderThreadImpl::PendingFrameCreate::OnConnectionError,
base::Unretained(this)));
}
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);
// In order to reduce performance impact, translate critical level to
// moderate level for foregroud renderer.
if (!RendererIsHidden() &&
v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
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));
}
} // namespace content