Add Start/Stop event signalling on Prerenders.

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 "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/renderer/render_process_observer.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebPrerender.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebPrerenderingSupport.h"
 
 class GURL;
 
 namespace prerender {
 
 // There is one PrerenderDispatcher per render process. It keeps track of which
 // prerenders were launched from this renderer, and ensures prerender navigation
 // is triggered on navigation to those. It implements the prerendering interface
 // supplied to WebKit.
@@ skipping 15 matching lines @@
 
   // From RenderProcessObserver:
   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // From WebPrerenderingSupport:
   virtual void add(const WebKit::WebPrerender& prerender) OVERRIDE;
   virtual void cancel(const WebKit::WebPrerender& prerender) OVERRIDE;
   virtual void abandon(const WebKit::WebPrerender& prerender) OVERRIDE;
 
   // From WebKit, prerender elements launched by renderers in our process.
-  // TODO(gavinp): Store a WebKit::WebPrerender* here once the WebKit API
-  // updates to allow this.
-  std::map<int, GURL> prerenders_;
+  std::map<int, WebKit::WebPrerender> prerenders_;
 
   // From the browser process, which prerenders are running, indexed by URL.
   // Updated by the browser processes as aliases are discovered.
   std::multimap<GURL, int> running_prerender_urls_;
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_RENDERER_PRERENDER_PRERENDER_DISPATCHER_H_