Template methods on Timer classes instead of the classes themselves.

chrome/browser/safe_browsing/incident_reporting/delayed_callback_runner.h

 // Copyright 2014 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_SAFE_BROWSING_INCIDENT_REPORTING_DELAYED_CALLBACK_RUNNER_H_
 #define CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_DELAYED_CALLBACK_RUNNER_H_
 
 #include <list>
 
 #include "base/callback_forward.h"
@@ skipping 38 matching lines @@
   // The runner on which callbacks are to be run.
   scoped_refptr<base::TaskRunner> task_runner_;
 
   // The list of callbacks to run. Callbacks are removed when run.
   CallbackList callbacks_;
 
   // callbacks_.end() when no work is being done. Any other value otherwise.
   CallbackList::iterator next_callback_;
 
   // A timer upon the firing of which the next callback will be run.
-  base::DelayTimer<DelayedCallbackRunner> timer_;
+  base::DelayTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(DelayedCallbackRunner);
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_DELAYED_CALLBACK_RUNNER_H_