Implement frame attribution (FrameBlamer)

content/renderer/render_frame_impl.cc

 // Copyright 2013 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_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 11 matching lines @@
 #include "base/memory/shared_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/process/process.h"
 #include "base/stl_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event_argument.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 #include "content/child/appcache/appcache_dispatcher.h"
 #include "content/child/permissions/permission_dispatcher.h"
 #include "content/child/plugin_messages.h"
 #include "content/child/quota_dispatcher.h"
 #include "content/child/request_extra_data.h"
 #include "content/child/service_worker/service_worker_handle_reference.h"
 #include "content/child/service_worker/service_worker_network_provider.h"
@@ skipping 1015 matching lines @@
     render_view_->main_render_frame_ = nullptr;
   }
 
   render_view_->UnregisterRenderFrame(this);
   g_routing_id_frame_map.Get().erase(routing_id_);
   RenderThread::Get()->RemoveRoute(routing_id_);
 }
 
 void RenderFrameImpl::BindToWebFrame(blink::WebLocalFrame* web_frame) {
   DCHECK(!frame_);
+  DCHECK(!blame_context_);
 
   std::pair<FrameMap::iterator, bool> result = g_frame_map.Get().insert(
       std::make_pair(web_frame, this));
   CHECK(result.second) << "Inserting a duplicate item.";
 
   frame_ = web_frame;
+
+  if (frame_->parent()) {

[benjhayden, 2016/03/21 17:32:56]

Maybe move this logic into RenderFrameBlameContext?

[Sami, 2016/03/21 19:16:29]

Good idea, done.

+    RenderFrameImpl* parent_frame =
+        RenderFrameImpl::FromWebFrame(frame_->parent());
+    blame_context_ = make_scoped_ptr(new RenderFrameBlameContext(
+        routing_id_, *parent_frame->blame_context_));
+  } else {
+    blame_context_ = make_scoped_ptr(new RenderFrameBlameContext(
+        routing_id_, *RenderThreadImpl::current()->blame_context()));
+  }
+  blame_context_->Initialize();
 }
 
 void RenderFrameImpl::Initialize() {
   is_main_frame_ = !frame_->parent();
 
   RenderFrameImpl* parent_frame = RenderFrameImpl::FromWebFrame(
       frame_->parent());
   if (parent_frame)
     is_using_lofi_ = parent_frame->IsUsingLoFi();
 
@@ skipping 1430 matching lines @@
   return external_popup_menu_.get();
 #else
   return NULL;
 #endif
 }
 
 blink::WebCookieJar* RenderFrameImpl::cookieJar() {
   return &cookie_jar_;
 }
 
+blink::BlameContext* RenderFrameImpl::frameBlameContext() {
+  DCHECK(blame_context_);
+  return blame_context_.get();
+}
+
 blink::WebServiceWorkerProvider*
 RenderFrameImpl::createServiceWorkerProvider() {
   // At this point we should have non-null data source.
   DCHECK(frame_->dataSource());
   if (!ChildThreadImpl::current())
     return nullptr;  // May be null in some tests.
   ServiceWorkerNetworkProvider* provider =
       ServiceWorkerNetworkProvider::FromDocumentState(
           DocumentState::FromDataSource(frame_->dataSource()));
   DCHECK(provider);
@@ skipping 695 matching lines @@
 
   SendDidCommitProvisionalLoad(frame, commit_type, item);
 
   // Check whether we have new encoding name.
   UpdateEncoding(frame, frame->view()->pageEncoding().utf8());
 }
 
 void RenderFrameImpl::didCreateNewDocument(blink::WebLocalFrame* frame) {
   DCHECK(!frame_ || frame_ == frame);
 
+  blame_context_->set_url(frame_->getSecurityOrigin().toString().utf8());

[benjhayden, 2016/03/21 17:32:56]

Could you make the RenderFrameBlameContext observe the RenderFrame instead?

[Sami, 2016/03/21 19:16:29]

Great idea, no need to add new explicit calls.

+  blame_context_->TakeSnapshot();
+
   FOR_EACH_OBSERVER(RenderFrameObserver, observers_, DidCreateNewDocument());
   FOR_EACH_OBSERVER(RenderViewObserver, render_view_->observers(),
                     DidCreateNewDocument(frame));
 }
 
 void RenderFrameImpl::didClearWindowObject(blink::WebLocalFrame* frame) {
   DCHECK_EQ(frame_, frame);
 
   int enabled_bindings = render_view_->GetEnabledBindings();
 
@@ skipping 2753 matching lines @@
                                     int match_count,
                                     int ordinal,
                                     const WebRect& selection_rect,
                                     bool final_status_update) {
   Send(new FrameHostMsg_Find_Reply(routing_id_, request_id, match_count,
                                    selection_rect, ordinal,
                                    final_status_update));
 }
 
 }  // namespace content