Remove DeleteTask and convert remaining users.

content/public/browser/browser_thread.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_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/callback.h"
@@ skipping 127 matching lines @@
   static bool PostTaskAndReply(
       ID identifier,
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       const base::Closure& reply);
 
   template <class T>
   static bool DeleteSoon(ID identifier,
                          const tracked_objects::Location& from_here,
                          const T* object) {
-    return PostNonNestableTask(
-        identifier, from_here, new DeleteTask<T>(object));
+    return GetMessageLoopProxyForThread(identifier)->DeleteSoon(
+        from_here, object);
   }
 
   template <class T>
   static bool ReleaseSoon(ID identifier,
                           const tracked_objects::Location& from_here,
                           const T* object) {
     return GetMessageLoopProxyForThread(identifier)->ReleaseSoon(
         from_here, object);
   }
 
@@ skipping 84 matching lines @@
  private:
   friend class BrowserThreadImpl;
 
   BrowserThread() {}
   DISALLOW_COPY_AND_ASSIGN(BrowserThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_