Implement frame attribution (FrameBlamer)

content/renderer/renderer_blink_platform_impl.cc

 // 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/renderer_blink_platform_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 66 matching lines @@
 #include "content/renderer/webpublicsuffixlist_impl.h"
 #include "gpu/config/gpu_info.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "media/audio/audio_output_device.h"
 #include "media/base/audio_hardware_config.h"
 #include "media/base/mime_util.h"
 #include "media/blink/webcontentdecryptionmodule_impl.h"
 #include "media/filters/stream_parser_factory.h"
 #include "storage/common/database/database_identifier.h"
 #include "storage/common/quota/quota_types.h"
+#include "third_party/WebKit/public/platform/BlameContext.h"
 #include "third_party/WebKit/public/platform/FilePathConversion.h"
 #include "third_party/WebKit/public/platform/URLConversion.h"
 #include "third_party/WebKit/public/platform/WebBlobRegistry.h"
 #include "third_party/WebKit/public/platform/WebDeviceLightListener.h"
 #include "third_party/WebKit/public/platform/WebFileInfo.h"
 #include "third_party/WebKit/public/platform/WebGamepads.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamCenter.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamCenterClient.h"
 #include "third_party/WebKit/public/platform/WebPluginListBuilder.h"
 #include "third_party/WebKit/public/platform/WebSecurityOrigin.h"
@@ skipping 164 matching lines @@
   // ChildThread may not exist in some tests.
   if (ChildThreadImpl::current()) {
     sync_message_filter_ = ChildThreadImpl::current()->sync_message_filter();
     thread_safe_sender_ = ChildThreadImpl::current()->thread_safe_sender();
     quota_message_filter_ = ChildThreadImpl::current()->quota_message_filter();
     blob_registry_.reset(new WebBlobRegistryImpl(thread_safe_sender_.get()));
     web_idb_factory_.reset(new WebIDBFactoryImpl(thread_safe_sender_.get()));
     web_database_observer_impl_.reset(
         new WebDatabaseObserverImpl(sync_message_filter_.get()));
   }
+
+  top_level_blame_context_.Initialize();
+  renderer_scheduler_->SetTopLevelBlameContext(&top_level_blame_context_);
 }
 
 RendererBlinkPlatformImpl::~RendererBlinkPlatformImpl() {
   WebFileSystemImpl::DeleteThreadSpecificInstance();
+  renderer_scheduler_->SetTopLevelBlameContext(nullptr);
 }
 
 void RendererBlinkPlatformImpl::Shutdown() {
 #if !defined(OS_ANDROID) && !defined(OS_WIN)
   // SandboxSupport contains a map of WebFontFamily objects, which hold
   // WebCStrings, which become invalidated when blink is shut down. Hence, we
   // need to clear that map now, just before blink::shutdown() is called.
   sandbox_support_.reset();
 #endif
 }
 
 //------------------------------------------------------------------------------
 
 blink::WebURLLoader* RendererBlinkPlatformImpl::createURLLoader() {
   ChildThreadImpl* child_thread = ChildThreadImpl::current();
   // There may be no child thread in RenderViewTests.  These tests can still use
   // data URLs to bypass the ResourceDispatcher.
   return new content::WebURLLoaderImpl(
       child_thread ? child_thread->resource_dispatcher() : NULL,
       make_scoped_ptr(currentThread()->getWebTaskRunner()->clone()));
 }
 
 blink::WebThread* RendererBlinkPlatformImpl::currentThread() {
   if (main_thread_->isCurrentThread())
     return main_thread_.get();
   return BlinkPlatformImpl::currentThread();
 }
 
+blink::BlameContext* RendererBlinkPlatformImpl::topLevelBlameContext() {
+  return &top_level_blame_context_;
+}
+
 blink::WebClipboard* RendererBlinkPlatformImpl::clipboard() {
   blink::WebClipboard* clipboard =
       GetContentClient()->renderer()->OverrideWebClipboard();
   if (clipboard)
     return clipboard;
   return clipboard_.get();
 }
 
 blink::WebMimeRegistry* RendererBlinkPlatformImpl::mimeRegistry() {
   return mime_registry_.get();
@@ skipping 950 matching lines @@
 }
 
 //------------------------------------------------------------------------------
 
 blink::WebTrialTokenValidator*
 RendererBlinkPlatformImpl::trialTokenValidator() {
   return &trial_token_validator_;
 }
 
 }  // namespace content