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

chrome/browser/browsing_data/browsing_data_quota_helper_impl.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_IMPL_H_
 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 13 matching lines @@
 
 // Implementation of BrowsingDataQuotaHelper.  Since a client of
 // BrowsingDataQuotaHelper should live in UI thread and QuotaManager lives in
 // IO thread, we have to communicate over thread using PostTask.
 class BrowsingDataQuotaHelperImpl : public BrowsingDataQuotaHelper {
  public:
   void StartFetching(const FetchResultCallback& callback) override;
   void RevokeHostQuota(const std::string& host) override;
 
  private:
-  BrowsingDataQuotaHelperImpl(base::MessageLoopProxy* ui_thread,
-                              base::MessageLoopProxy* io_thread,
+  BrowsingDataQuotaHelperImpl(base::SingleThreadTaskRunner* ui_thread,
+                              base::SingleThreadTaskRunner* io_thread,
                               storage::QuotaManager* quota_manager);
   ~BrowsingDataQuotaHelperImpl() override;
 
   void FetchQuotaInfo();
 
   // Callback function for GetOriginModifiedSince.
   void GotOrigins(const std::set<GURL>& origins, storage::StorageType type);
 
   void ProcessPendingHosts();
   void GetHostUsage(const std::string& host, storage::StorageType type);
 
   // Callback function for GetHostUsage.
   void GotHostUsage(const std::string& host,
                     storage::StorageType type,
                     int64 usage);
 
   void OnComplete();
   void DidRevokeHostQuota(storage::QuotaStatusCode status, int64 quota);
 
   scoped_refptr<storage::QuotaManager> quota_manager_;
   FetchResultCallback callback_;
 
   typedef std::set<std::pair<std::string, storage::StorageType> > PendingHosts;
   PendingHosts pending_hosts_;
   std::map<std::string, QuotaInfo> quota_info_;
 
   bool is_fetching_;
 
-  scoped_refptr<base::MessageLoopProxy> ui_thread_;
-  scoped_refptr<base::MessageLoopProxy> io_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> ui_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
   base::WeakPtrFactory<BrowsingDataQuotaHelperImpl> weak_factory_;
 
   friend class BrowsingDataQuotaHelper;
   friend class BrowsingDataQuotaHelperTest;
 
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataQuotaHelperImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_IMPL_H_