Remove task.h and finish base::Bind() migration.

chrome/browser/chromeos/login/mock_url_fetchers.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_CHROMEOS_LOGIN_MOCK_URL_FETCHERS_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_MOCK_URL_FETCHERS_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
-#include "base/task.h"
 #include "content/test/test_url_fetcher_factory.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request_status.h"
 
 namespace content {
 class URLFetcherDelegate;
 }
 
 namespace chromeos {
 
@@ skipping 96 matching lines @@
 
   virtual void Start() OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HostedFetcher);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_MOCK_URL_FETCHERS_H_