Remove DeleteTask and convert remaining users.

content/browser/renderer_host/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 CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_
 #pragma once
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/linked_ptr.h"
+#include "base/message_loop_helpers.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
 #include "build/build_config.h"
 #include "content/browser/in_process_webkit/webkit_context.h"
 #include "content/browser/renderer_host/resource_dispatcher_host.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/surface/transport_dib.h"
 
@@ skipping 60 matching lines @@
     return resource_dispatcher_host_;
   }
 
   // Returns the correct net::URLRequestContext depending on what type of url is
   // given.
   // Only call on the IO thread.
   net::URLRequestContext* GetRequestContextForURL(const GURL& url);
 
  private:
   friend class content::BrowserThread;
-  friend class DeleteTask<RenderMessageFilter>;
+  friend class base::DeleteHelper<RenderMessageFilter>;
 
   class OpenChannelToNpapiPluginCallback;
 
   virtual ~RenderMessageFilter();
 
   void OnMsgCreateWindow(const ViewHostMsg_CreateWindow_Params& params,
                          int* route_id,
                          int64* cloned_session_storage_namespace_id);
   void OnMsgCreateWidget(int opener_id,
                          WebKit::WebPopupType popup_type,
@@ skipping 151 matching lines @@
   base::TimeTicks cpu_usage_sample_time_;
   // Records the last sampled CPU usage in percents.
   int cpu_usage_;
   // Used for sampling CPU usage of the renderer process.
   scoped_ptr<base::ProcessMetrics> process_metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderMessageFilter);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_