Attempt 2 at landing this....

chrome/browser/renderer_host/resource_message_filter.cc

 // Copyright (c) 2009 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.
 
 #include "chrome/browser/renderer_host/resource_message_filter.h"
 
 #include "app/clipboard/clipboard.h"
 #include "app/gfx/native_widget_types.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 520 matching lines @@
              it->ExpiryDate().ToDoubleT() * 1000,
              it->IsHttpOnly(),
              it->IsSecure(),
              !it->IsPersistent()));
   }
 }
 
 void ResourceMessageFilter::OnDeleteCookie(const GURL& url,
                                            const std::string& cookie_name) {
   URLRequestContext* context = GetRequestContextForURL(url);
-  net::CookieMonster* cookie_monster = context->cookie_store()->
-      GetCookieMonster();
-  if (!cookie_monster)
-    return;
-
-  cookie_monster->DeleteCookie(url, cookie_name);
+  context->cookie_store()->DeleteCookie(url, cookie_name);
 }
 
 #if defined(OS_WIN)  // This hack is Windows-specific.
 void ResourceMessageFilter::OnLoadFont(LOGFONT font) {
   // If renderer is running in a sandbox, GetTextMetrics
   // can sometimes fail. If a font has not been loaded
   // previously, GetTextMetrics will try to load the font
   // from the font file. However, the sandboxed renderer does
   // not have permissions to access any font files and
   // the call fails. So we make the browser pre-load the
@@ skipping 667 matching lines @@
   if (bundle.get())
     dictionary_map = *bundle->dictionary();
 
   ViewHostMsg_GetExtensionMessageBundle::WriteReplyParams(
       reply_msg, dictionary_map);
 
   ChromeThread::PostTask(
       ChromeThread::IO, FROM_HERE,
       NewRunnableMethod(this, &ResourceMessageFilter::Send, reply_msg));
 }