Fix memory leak in PrerenderDispatcher.

chrome/renderer/chrome_content_renderer_client.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_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 10 matching lines @@
 class RendererHistogramSnapshots;
 class RendererNetPredictor;
 class SpellCheck;
 class SpellCheckProvider;
 class VisitedLinkSlave;
 
 struct ChromeViewHostMsg_GetPluginInfo_Status;
 
 namespace prerender {
 class PrerenderDispatcher;
+class PrerenderingSupport;
 }
 
 namespace safe_browsing {
 class PhishingClassifierFilter;
 }
 
 namespace webkit {
 struct WebPluginInfo;
 namespace npapi {
 class PluginGroup;
@@ skipping 119 matching lines @@
                             WebKit::WebPluginParams* params);
 
   scoped_ptr<ChromeRenderProcessObserver> chrome_observer_;
   scoped_ptr<ExtensionDispatcher> extension_dispatcher_;
   scoped_ptr<RendererHistogramSnapshots> histogram_snapshots_;
   scoped_ptr<RendererNetPredictor> net_predictor_;
   scoped_ptr<SpellCheck> spellcheck_;
   scoped_ptr<VisitedLinkSlave> visited_link_slave_;
   scoped_ptr<safe_browsing::PhishingClassifierFilter> phishing_classifier_;
   scoped_ptr<prerender::PrerenderDispatcher> prerender_dispatcher_;
+  scoped_ptr<prerender::PrerenderingSupport> prerendering_support_;
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_