Template methods on Timer classes instead of the classes themselves.

components/sync_driver/sync_stopped_reporter.h

 // Copyright 2015 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 COMPONENTS_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_
 #define COMPONENTS_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_
 
 #include "base/callback.h"
 #include "base/timer/timer.h"
 #include "net/url_request/url_fetcher.h"
@@ skipping 36 matching lines @@
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
 
  private:
   // Convert the base sync URL into the sync event URL.
   static GURL GetSyncEventURL(const GURL& sync_service_url);
 
   // Callback for a request timing out.
   void OnTimeout();
 
   // Handles timing out requests.
-  base::OneShotTimer<SyncStoppedReporter> timer_;
+  base::OneShotTimer timer_;
 
   // The URL for the sync server's event RPC.
   const GURL sync_event_url_;
 
   // The user agent for the browser.
   const std::string user_agent_;
 
   // Stored to simplify the API; needed for URLFetcher::Create().
   scoped_refptr<net::URLRequestContextGetter> request_context_;
 
   // The current URLFetcher. Null unless a request is in progress.
   scoped_ptr<net::URLFetcher> fetcher_;
 
   // A callback for request completion or timeout.
   ResultCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncStoppedReporter);
 };
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_SYNC_DRIVER_SYNC_STOPPED_REPORTER_H_