Remove DeleteTask and convert remaining users.

chrome/browser/ui/webui/media/media_internals_proxy.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_UI_WEBUI_MEDIA_MEDIA_INTERNALS_PROXY_H_
 #define CHROME_BROWSER_UI_WEBUI_MEDIA_MEDIA_INTERNALS_PROXY_H_
 #pragma once
 
 #include "base/memory/ref_counted.h"
+#include "base/message_loop_helpers.h"
 #include "base/string16.h"
 #include "chrome/browser/media/media_internals_observer.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class IOThread;
 class MediaInternalsMessageHandler;
 
@@ skipping 36 matching lines @@
   // ChromeNetLog::ThreadSafeObserver implementation. Callable from any thread:
   virtual void OnAddEntry(net::NetLog::EventType type,
                           const base::TimeTicks& time,
                           const net::NetLog::Source& source,
                           net::NetLog::EventPhase phase,
                           net::NetLog::EventParameters* params) OVERRIDE;
 
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;
-  friend class DeleteTask<MediaInternalsProxy>;
+  friend class base::DeleteHelper<MediaInternalsProxy>;
   virtual ~MediaInternalsProxy();
 
   // Build a dictionary mapping constant names to values.
   base::Value* GetConstants();
 
   void ObserveMediaInternalsOnIOThread();
   void StopObservingMediaInternalsOnIOThread();
   void GetEverythingOnIOThread();
   void UpdateUIOnUIThread(const string16& update);
 
   // Put |entry| on a list of events to be sent to the page.
   void AddNetEventOnUIThread(base::Value* entry);
 
   // Send all pending events to the page.
   void SendNetEventsOnUIThread();
 
   // Call a JavaScript function on the page. Takes ownership of |args|.
   void CallJavaScriptFunctionOnUIThread(const std::string& function,
                                         base::Value* args);
 
   MediaInternalsMessageHandler* handler_;
   IOThread* io_thread_;
   scoped_ptr<base::ListValue> pending_net_updates_;
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaInternalsProxy);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_MEDIA_INTERNALS_PROXY_H_