Remove message_loop_helpers.h and update the includes to point to the new location.

chrome/browser/browsing_data_remover.h

 // Copyright (c) 2012 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_BROWSING_DATA_REMOVER_H_
 #define CHROME_BROWSER_BROWSING_DATA_REMOVER_H_
 #pragma once
 
 #include <set>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop_helpers.h"
 #include "base/observer_list.h"
+#include "base/sequenced_task_runner_helpers.h"
 #include "base/synchronization/waitable_event_watcher.h"
 #include "base/time.h"
 #include "chrome/browser/cancelable_request.h"
 #include "chrome/browser/pepper_flash_settings_manager.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "content/public/browser/dom_storage_context.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/dom_storage/dom_storage_context.h"
@@ skipping 332 matching lines @@
 
   ObserverList<Observer> observer_list_;
 
   // Used if we need to clear history.
   CancelableRequestConsumer request_consumer_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataRemover);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_REMOVER_H_