Only commit cookie changes in prerenders after a prerender is shown

chrome/browser/net/chrome_network_delegate.cc

Index: chrome/browser/net/chrome_network_delegate.cc
===================================================================
--- chrome/browser/net/chrome_network_delegate.cc	(revision 269781)
+++ chrome/browser/net/chrome_network_delegate.cc	(working copy)
@@ -29,6 +29,7 @@
 #include "chrome/browser/net/client_hints.h"
 #include "chrome/browser/net/connect_interceptor.h"
 #include "chrome/browser/performance_monitor/performance_monitor.h"
+#include "chrome/browser/prerender/prerender_tracker.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/common/pref_names.h"
@@ -52,6 +53,7 @@
 #include "net/http/http_response_headers.h"
 #include "net/socket_stream/socket_stream.h"
 #include "net/url_request/url_request.h"
+#include "net/url_request/url_request_context.h"
 
 #if defined(OS_CHROMEOS)
 #include "base/command_line.h"
@@ -358,7 +360,8 @@
       domain_reliability_monitor_(NULL),
       received_content_length_(0),
       original_content_length_(0),
-      first_request_(true) {
+      first_request_(true),
+      prerender_tracker_(NULL) {
   DCHECK(event_router);
   DCHECK(enable_referrers);
 }
@@ -742,6 +745,13 @@
                    cookie_line, *options, !allow));
   }
 
+  if (prerender_tracker_) {
+    prerender_tracker_->OnCookieChangedForURL(
+        render_process_id,
+        request.context()->cookie_store()->GetCookieMonster(),
+        request.url());
+  }
+
   return allow;
 }