Only commit cookie changes in prerenders after a prerender is shown

chrome/browser/net/chrome_network_delegate.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_NET_CHROME_NETWORK_DELEGATE_H_
 #define CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 31 matching lines @@
 }
 
 namespace net {
 class URLRequest;
 }
 
 namespace policy {
 class URLBlacklistManager;
 }
 
+namespace prerender {
+class PrerenderTracker;
+}
+
 // ChromeNetworkDelegate is the central point from within the chrome code to
 // add hooks into the network stack.
 class ChromeNetworkDelegate : public net::NetworkDelegate {
  public:
   // |enable_referrers| (and all of the other optional PrefMembers) should be
   // initialized on the UI thread (see below) beforehand. This object's owner is
   // responsible for cleaning them up at shutdown.
   ChromeNetworkDelegate(extensions::EventRouterForwarder* event_router,
                         BooleanPrefMember* enable_referrers);
   virtual ~ChromeNetworkDelegate();
@@ skipping 37 matching lines @@
       BooleanPrefMember* force_google_safe_search) {
     force_google_safe_search_ = force_google_safe_search;
   }
 
   void set_domain_reliability_monitor(
       domain_reliability::DomainReliabilityMonitor*
           domain_reliability_monitor) {
     domain_reliability_monitor_ = domain_reliability_monitor;
   }
 
+  void set_prerender_tracker(prerender::PrerenderTracker* prerender_tracker) {
+    prerender_tracker_ = prerender_tracker;
+  }
+
   // Adds the Client Hints header to HTTP requests.
   void SetEnableClientHints();
 
   // Causes |OnCanThrottleRequest| to always return false, for all
   // instances of this object.
   static void NeverThrottleRequests();
 
   // Binds the pref members to |pref_service| and moves them to the IO thread.
   // |enable_referrers| cannot be NULL, the others can.
   // This method should be called on the UI thread.
@@ skipping 102 matching lines @@
   // over the network.
   int64 received_content_length_;
 
   // Total original size of all content before it was transferred.
   int64 original_content_length_;
 
   scoped_ptr<ClientHints> client_hints_;
 
   bool first_request_;
 
+  prerender::PrerenderTracker* prerender_tracker_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_