When starting a provisional load include the parent frame ID in the IPC and pass it down the th WCO…

chrome/browser/extensions/api/web_navigation/web_navigation_api.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.
 
 // Implements the Chrome Extensions WebNavigation API.
 
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
 
 #include "base/lazy_instance.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h"
@@ skipping 350 matching lines @@
       SendErrorEvents(web_contents(),
                       pending_render_view_host_,
                       FrameNavigationState::FrameID());
     }
     pending_render_view_host_ = render_view_host;
   }
 }
 
 void WebNavigationTabObserver::DidStartProvisionalLoadForFrame(
     int64 frame_num,
+    int64 parent_frame_num,
     bool is_main_frame,
     const GURL& validated_url,
     bool is_error_page,
     content::RenderViewHost* render_view_host) {
   if (!render_view_host_)
     render_view_host_ = render_view_host;
   if (render_view_host != render_view_host_ &&
       render_view_host != pending_render_view_host_)
     return;
 
   FrameNavigationState::FrameID frame_id(frame_num, render_view_host);
+  FrameNavigationState::FrameID parent_frame_id(
+      parent_frame_num, render_view_host);
 
   navigation_state_.TrackFrame(frame_id,
+                               parent_frame_id,
                                validated_url,
                                is_main_frame,
                                is_error_page);
   if (!navigation_state_.CanSendEvents(frame_id))
     return;
 
   helpers::DispatchOnBeforeNavigate(
       web_contents(), render_view_host->GetProcess()->GetID(), frame_num,
       is_main_frame, validated_url);
 }
@@ skipping 328 matching lines @@
         navigation_state.IsMainFrame(frame_id), frame_id.frame_num);
     frame->process_id = frame_id.render_view_host->GetProcess()->GetID();
     frame->error_occurred = navigation_state.GetErrorOccurredInFrame(frame_id);
     result_list.push_back(frame);
   }
   results_ = GetAllFrames::Results::Create(result_list);
   return true;
 }
 
 }  // namespace extensions