Only commit cookie changes in prerenders after a prerender is shown

chrome/browser/prerender/prerender_contents.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_CONTENTS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 21 matching lines @@
 namespace content {
 class RenderViewHost;
 class SessionStorageNamespace;
 class WebContents;
 }
 
 namespace history {
 struct HistoryAddPageArgs;
 }
 
+namespace net {
+class URLRequestContextGetter;
+}
+
 namespace prerender {
 
 class PrerenderHandle;
 class PrerenderManager;
 class PrerenderResourceThrottle;
 
 class PrerenderContents : public content::NotificationObserver,
-                          public content::WebContentsObserver {
+                          public content::WebContentsObserver,
+                          public base::SupportsWeakPtr<PrerenderContents> {
  public:
   // PrerenderContents::Create uses the currently registered Factory to create
   // the PrerenderContents. Factory is intended for testing.
   class Factory {
    public:
     Factory() {}
     virtual ~Factory() {}
 
     // Ownership is not transfered through this interface as prerender_manager,
     // prerender_tracker, and profile are stored as weak pointers.
@@ skipping 84 matching lines @@
   // starting a prerender, without actually creating the RenderView.
   // |creator_child_id| is the id of the child process that caused the prerender
   // to be created, and is needed so that the prerendered URLs can be sent to it
   // so render-initiated navigations will swap in the prerendered page. |size|
   // indicates the rectangular dimensions that the prerendered page should be.
   // |session_storage_namespace| indicates the namespace that the prerendered
   // page should be part of.
   virtual void StartPrerendering(
       int creator_child_id,
       const gfx::Size& size,
-      content::SessionStorageNamespace* session_storage_namespace);
+      content::SessionStorageNamespace* session_storage_namespace,
+      net::URLRequestContextGetter* request_context);
 
   // Verifies that the prerendering is not using too many resources, and kills
   // it if not.
   void DestroyWhenUsingTooManyResources();
 
   content::RenderViewHost* GetRenderViewHostMutable();
   const content::RenderViewHost* GetRenderViewHost() const;
 
   PrerenderManager* prerender_manager() { return prerender_manager_; }
 
@@ skipping 310 matching lines @@
   // A running tally of the number of bytes this prerender has caused to be
   // transferred over the network for resources.  Updated with AddNetworkBytes.
   int64 network_bytes_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_