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

chrome/browser/prerender/prerender_tab_helper.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_TAB_HELPER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_TAB_HELPER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "content/public/browser/web_contents_observer.h"
@@ skipping 14 matching lines @@
 
   // content::WebContentsObserver implementation.
   virtual void ProvisionalChangeToMainFrameUrl(
       const GURL& url,
       const GURL& opener_url,
       content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void DidStopLoading(
       content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void DidStartProvisionalLoadForFrame(
       int64 frame_id,
+      int64 parent_frame_id,
       bool is_main_frame,
       const GURL& validated_url,
       bool is_error_page,
       content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void DidCommitProvisionalLoadForFrame(
       int64 frame_id,
       bool is_main_frame,
       const GURL& validated_url,
       content::PageTransition transition_type,
       content::RenderViewHost* render_view_host) OVERRIDE;
@@ skipping 30 matching lines @@
 
   // Current URL being loaded.
   GURL url_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderTabHelper);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_TAB_HELPER_H_