Template methods on Timer classes instead of the classes themselves.

chrome/browser/sync_file_system/local/local_file_sync_context.h

 // Copyright 2013 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_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 342 matching lines @@
   std::map<storage::FileSystemContext*, StatusCallbackQueue>
       pending_initialize_callbacks_;
 
   // A URL and associated callback waiting for sync is enabled.
   // Accessed only on IO thread.
   storage::FileSystemURL url_waiting_sync_on_io_;
   base::Closure url_syncable_callback_;
 
   // Used only on IO thread for available changes notifications.
   base::Time last_notified_changes_;
-  scoped_ptr<base::OneShotTimer<LocalFileSyncContext> > timer_on_io_;
+  scoped_ptr<base::OneShotTimer> timer_on_io_;
   std::vector<base::Closure> pending_completion_callbacks_;
   std::set<GURL> origins_with_pending_changes_;
 
   // Populated while root directory deletion is being handled for
   // ApplyRemoteChange(). Modified only on IO thread.
   scoped_ptr<RootDeleteHelper> root_delete_helper_;
 
   base::ObserverList<LocalOriginChangeObserver> origin_change_observers_;
 
   int mock_notify_changes_duration_in_sec_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileSyncContext);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_