Remove DeleteTask and convert remaining users.

content/browser/renderer_host/pepper_file_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_PEPPER_FILE_MESSAGE_FILTER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_FILE_MESSAGE_FILTER_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
+#include "base/message_loop_helpers.h"
 #include "base/process.h"
-#include "base/task.h"
 #include "build/build_config.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "ipc/ipc_platform_file.h"
 #include "webkit/plugins/ppapi/dir_contents.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace webkit {
@@ skipping 13 matching lines @@
       const IPC::Message& message,
       content::BrowserThread::ID* thread) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok) OVERRIDE;
   virtual void OnDestruct() const OVERRIDE;
 
   int child_id() const { return child_id_; }
 
  private:
   friend class content::BrowserThread;
-  friend class DeleteTask<PepperFileMessageFilter>;
+  friend class base::DeleteHelper<PepperFileMessageFilter>;
   virtual ~PepperFileMessageFilter();
 
   // Called on the FILE thread:
   void OnOpenFile(const webkit::ppapi::PepperFilePath& path,
                   int flags,
                   base::PlatformFileError* error,
                   IPC::PlatformFileForTransit* file);
   void OnRenameFile(const webkit::ppapi::PepperFilePath& from_path,
                     const webkit::ppapi::PepperFilePath& to_path,
                     base::PlatformFileError* error);
@@ skipping 21 matching lines @@
   // owned by this class.
   IPC::Channel* channel_;
 
   // The base path for the pepper data.
   FilePath pepper_path_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperFileMessageFilter);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_FILE_MESSAGE_FILTER_H_