Pass DomContentLoaded event from prerenders to launching elements.

chrome/renderer/prerender/prerender_dispatcher.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_RENDERER_PRERENDER_PRERENDER_DISPATCHER_H_
 #define CHROME_RENDERER_PRERENDER_PRERENDER_DISPATCHER_H_
 
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 19 matching lines @@
   virtual ~PrerenderDispatcher();
 
   bool IsPrerenderURL(const GURL& url) const;
 
  private:
   friend class PrerenderDispatcherTest;
 
   // Message handlers for messages from the browser process.
   void OnPrerenderStart(int prerender_id);
   void OnPrerenderStopLoading(int prerender_id);
+  void OnPrerenderDomContentLoaded(int prerender_id);
   void OnPrerenderAddAlias(const GURL& alias);
   void OnPrerenderRemoveAliases(const std::vector<GURL>& aliases);
   void OnPrerenderStop(int prerender_id);
 
   // From RenderProcessObserver:
   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // From WebPrerenderingSupport:
   virtual void add(const blink::WebPrerender& prerender) OVERRIDE;
   virtual void cancel(const blink::WebPrerender& prerender) OVERRIDE;
   virtual void abandon(const blink::WebPrerender& prerender) OVERRIDE;
 
   // From WebKit, prerender elements launched by renderers in our process.
   std::map<int, blink::WebPrerender> prerenders_;
 
   // From the browser process, which prerenders are running, indexed by URL.
   // Updated by the browser processes as aliases are discovered.
   std::multiset<GURL> running_prerender_urls_;
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_RENDERER_PRERENDER_PRERENDER_DISPATCHER_H_