OOPIF: report both original and destination rfh in AboutToNavigateRenderFrame.

content/browser/frame_host/navigator_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/browser/frame_host/navigator_impl.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "content/browser/frame_host/frame_tree.h"
@@ skipping 397 matching lines @@
 
   // Make sure no code called via RFHM::Navigate clears the pending entry.
   CHECK_EQ(controller_->GetPendingEntry(), &entry);
 
   // For security, we should never send non-Web-UI URLs to a Web UI renderer.
   // Double check that here.
   CheckWebUIRendererDoesNotDisplayNormalURL(
       dest_render_frame_host, entry.GetURL());
 
   // Notify observers that we will navigate in this RenderFrame.
-  if (delegate_)
-    delegate_->AboutToNavigateRenderFrame(dest_render_frame_host);
+  if (delegate_) {
+    delegate_->AboutToNavigateRenderFrame(render_frame_host,
+                                          dest_render_frame_host);
+  }
 
   // Create the navigation parameters.
   // TODO(vitalybuka): Move this before AboutToNavigateRenderFrame once
   // http://crbug.com/408684 is fixed.
   FrameMsg_Navigate_Params navigate_params;
   MakeNavigateParams(
       entry, controller_, reload_type, navigation_start, &navigate_params);
 
   // Navigate in the desired RenderFrameHost.
   // We can skip this step in the rare case that this is a transfer navigation
@@ skipping 540 matching lines @@
         "Navigation.TimeToCommit_ExistingRenderer_BeforeUnloadDiscounted",
         time_to_commit);
     UMA_HISTOGRAM_TIMES(
         "Navigation.TimeToURLJobStart_ExistingRenderer_BeforeUnloadDiscounted",
         time_to_network);
   }
   navigation_data_.reset();
 }
 
 }  // namespace content