Remove DeleteTask and convert remaining users.

chrome/browser/renderer_host/chrome_render_message_filter.h

 // Copyright (c) 2011 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_RENDERER_HOST_CHROME_RENDER_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_RENDERER_HOST_CHROME_RENDER_MESSAGE_FILTER_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/weak_ptr.h"
+#include "base/message_loop_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/content_settings.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCache.h"
 
 class CookieSettings;
 struct ExtensionHostMsg_Request_Params;
 class ExtensionInfoMap;
 class GURL;
 
@@ skipping 11 matching lines @@
 
   // content::BrowserMessageFilter methods:
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
   virtual void OverrideThreadForMessage(
       const IPC::Message& message,
       content::BrowserThread::ID* thread) OVERRIDE;
 
  private:
   friend class content::BrowserThread;
-  friend class DeleteTask<ChromeRenderMessageFilter>;
+  friend class base::DeleteHelper<ChromeRenderMessageFilter>;
 
   virtual ~ChromeRenderMessageFilter();
 
 #if !defined(DISABLE_NACL)
   void OnLaunchNaCl(const std::wstring& url,
                     int socket_count,
                     IPC::Message* reply_msg);
 #endif
   void OnDnsPrefetch(const std::vector<std::string>& hostnames);
   void OnRendererHistograms(int sequence_number,
@@ skipping 82 matching lines @@
   scoped_refptr<CookieSettings> cookie_settings_;
 
   const content::ResourceContext& resource_context_;
 
   base::WeakPtrFactory<ChromeRenderMessageFilter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeRenderMessageFilter);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RENDER_MESSAGE_FILTER_H_