[chrome/browser/browsing_data] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/browsing_data/browsing_data_quota_helper.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_BROWSING_DATA_QUOTA_HELPER_H_
 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
 
 #include <list>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "storage/common/quota/quota_types.h"
 
+
+namespace base {
+class SingleThreadTaskRunner;
+} // namespace base

[Bernhard Bauer, 2015/04/29 10:31:34]

Nit: Two spaces before the comment.

[Pranay, 2015/05/04 03:28:21]

Done.

[Pranay, 2015/05/04 03:30:31]

Done.

+
 class BrowsingDataQuotaHelper;
 class Profile;
 
 struct BrowsingDataQuotaHelperDeleter {
   static void Destruct(const BrowsingDataQuotaHelper* helper);
 };
 
 // This class is an interface class to bridge between Cookies Tree and Unified
 // Quota System.  This class provides a way to get usage and quota information
 // through the instance.
@@ skipping 33 matching lines @@
   typedef std::list<QuotaInfo> QuotaInfoArray;
   typedef base::Callback<void(const QuotaInfoArray&)> FetchResultCallback;
 
   static BrowsingDataQuotaHelper* Create(Profile* profile);
 
   virtual void StartFetching(const FetchResultCallback& callback) = 0;
 
   virtual void RevokeHostQuota(const std::string& host) = 0;
 
  protected:
-  explicit BrowsingDataQuotaHelper(base::MessageLoopProxy* io_thread_);
+  explicit BrowsingDataQuotaHelper(base::SingleThreadTaskRunner* io_thread_);
   virtual ~BrowsingDataQuotaHelper();
 
  private:
   friend class base::DeleteHelper<BrowsingDataQuotaHelper>;
   friend struct BrowsingDataQuotaHelperDeleter;
-  scoped_refptr<base::MessageLoopProxy> io_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataQuotaHelper);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_