Trace LayoutObject src attributes and parent frames

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 884 matching lines @@
     int32_t widget_routing_id,
     bool hidden,
     const blink::WebScreenInfo& screen_info,
     CompositorDependencies* compositor_deps,
     blink::WebFrame* opener) {
   // A main frame RenderFrame must have a RenderWidget.
   DCHECK_NE(MSG_ROUTING_NONE, widget_routing_id);
 
   RenderFrameImpl* render_frame =
       RenderFrameImpl::Create(render_view, routing_id);
-  render_frame->InitializeBlameContext(nullptr);
   WebLocalFrame* web_frame = WebLocalFrame::create(
       blink::WebTreeScopeType::Document, render_frame, opener);
   render_frame->BindToWebFrame(web_frame);
+  render_frame->InitializeBlameContext(nullptr);
   render_view->webview()->setMainFrame(web_frame);
   render_frame->render_widget_ = RenderWidget::CreateForFrame(
       widget_routing_id, hidden, screen_info, compositor_deps, web_frame);
   // TODO(kenrb): Observing shouldn't be necessary when we sort out
   // WasShown and WasHidden, separating page-level visibility from
   // frame-level visibility.
   // TODO(avi): This DCHECK is to track cleanup for https://crbug.com/545684
   DCHECK_EQ(render_view->GetWidget(), render_frame->render_widget_)
       << "Main frame is no longer reusing the RenderView as its widget! "
       << "Does the RenderFrame need to register itself with the RenderWidget?";
   return render_frame;
 }
 
 // static
 void RenderFrameImpl::CreateFrame(
     int routing_id,
     int proxy_routing_id,
     int opener_routing_id,
     int parent_routing_id,
     int previous_sibling_routing_id,
     const FrameReplicationState& replicated_state,
     CompositorDependencies* compositor_deps,
     const FrameMsg_NewFrame_WidgetParams& widget_params,
     const blink::WebFrameOwnerProperties& frame_owner_properties) {
   blink::WebLocalFrame* web_frame;
   RenderFrameImpl* render_frame;
+  RenderFrameImpl* parent_frame = nullptr;
   if (proxy_routing_id == MSG_ROUTING_NONE) {
     RenderFrameProxy* parent_proxy =
         RenderFrameProxy::FromRoutingID(parent_routing_id);
     // If the browser is sending a valid parent routing id, it should already
     // be created and registered.
     CHECK(parent_proxy);
     blink::WebRemoteFrame* parent_web_frame = parent_proxy->web_frame();
 
     blink::WebFrame* previous_sibling_web_frame = nullptr;
     RenderFrameProxy* previous_sibling_proxy =
         RenderFrameProxy::FromRoutingID(previous_sibling_routing_id);
     if (previous_sibling_proxy)
       previous_sibling_web_frame = previous_sibling_proxy->web_frame();
 
     // Create the RenderFrame and WebLocalFrame, linking the two.
     render_frame =
         RenderFrameImpl::Create(parent_proxy->render_view(), routing_id);
-    render_frame->InitializeBlameContext(FromRoutingID(parent_routing_id));
+    parent_frame = FromRoutingID(parent_routing_id);
     web_frame = parent_web_frame->createLocalChild(
         replicated_state.scope, WebString::fromUTF8(replicated_state.name),
         WebString::fromUTF8(replicated_state.unique_name),
         replicated_state.sandbox_flags, render_frame,
         previous_sibling_web_frame, frame_owner_properties,
         ResolveOpener(opener_routing_id, nullptr));
 
     // The RenderFrame is created and inserted into the frame tree in the above
     // call to createLocalChild.
     render_frame->in_frame_tree_ = true;
   } else {
     RenderFrameProxy* proxy =
         RenderFrameProxy::FromRoutingID(proxy_routing_id);
     // The remote frame could've been detached while the remote-to-local
     // navigation was being initiated in the browser process. Drop the
     // navigation and don't create the frame in that case.  See
     // https://crbug.com/526304.
     if (!proxy)
       return;
 
     render_frame = RenderFrameImpl::Create(proxy->render_view(), routing_id);
-    render_frame->InitializeBlameContext(nullptr);
     render_frame->proxy_routing_id_ = proxy_routing_id;
     web_frame = blink::WebLocalFrame::createProvisional(
         render_frame, proxy->web_frame(), replicated_state.sandbox_flags,
         frame_owner_properties);
   }
   render_frame->BindToWebFrame(web_frame);
+  render_frame->InitializeBlameContext(parent_frame);
   CHECK(parent_routing_id != MSG_ROUTING_NONE || !web_frame->parent());
 
   if (widget_params.routing_id != MSG_ROUTING_NONE) {
     CHECK(!web_frame->parent() ||
           SiteIsolationPolicy::AreCrossProcessFramesPossible());
     render_frame->render_widget_ = RenderWidget::CreateForFrame(
         widget_params.routing_id, widget_params.hidden,
         render_frame->render_view_->screen_info(), compositor_deps, web_frame);
     // TODO(avi): The main frame re-uses the RenderViewImpl as its widget, so
     // avoid double-registering the frame as an observer.
@@ skipping 1733 matching lines @@
 
   // Tracing analysis uses this to find main frames when this value is
   // MSG_ROUTING_NONE, and build the frame tree otherwise.
   TRACE_EVENT2("navigation", "RenderFrameImpl::createChildFrame",
                "id", routing_id_,
                "child", child_routing_id);
 
   // Create the RenderFrame and WebLocalFrame, linking the two.
   RenderFrameImpl* child_render_frame = RenderFrameImpl::Create(
       render_view_.get(), child_routing_id);
-  child_render_frame->InitializeBlameContext(this);
   blink::WebLocalFrame* web_frame =
       WebLocalFrame::create(scope, child_render_frame);
   child_render_frame->BindToWebFrame(web_frame);
+  child_render_frame->InitializeBlameContext(this);
 
   // Add the frame to the frame tree and initialize it.
   parent->appendChild(web_frame);
   child_render_frame->in_frame_tree_ = true;
   child_render_frame->Initialize();
 
   return web_frame;
 }
 
 void RenderFrameImpl::didChangeOpener(blink::WebFrame* opener) {
@@ skipping 3443 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content