Template methods on Timer classes instead of the classes themselves.

media/audio/audio_output_dispatcher_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.
 
 // AudioOutputDispatcherImpl is an implementation of AudioOutputDispatcher.
 //
 // To avoid opening and closing audio devices more frequently than necessary,
 // each dispatcher has a pool of inactive physical streams. A stream is closed
 // only if it hasn't been used for a certain period of time (specified via the
 // constructor).
@@ skipping 65 matching lines @@
   void CloseAllIdleStreams();
   // Similar to CloseAllIdleStreams(), but keeps |keep_alive| streams alive.
   void CloseIdleStreams(size_t keep_alive);
 
   size_t idle_proxies_;
   std::vector<AudioOutputStream*> idle_streams_;
 
   // When streams are stopped they're added to |idle_streams_|, if no stream is
   // reused before |close_delay_| elapses |close_timer_| will run
   // CloseIdleStreams().
-  base::DelayTimer<AudioOutputDispatcherImpl> close_timer_;
+  base::DelayTimer close_timer_;
 
   typedef std::map<AudioOutputProxy*, AudioOutputStream*> AudioStreamMap;
   AudioStreamMap proxy_to_physical_map_;
 
   scoped_ptr<AudioLog> audio_log_;
   typedef std::map<AudioOutputStream*, int> AudioStreamIDMap;
   AudioStreamIDMap audio_stream_ids_;
   int audio_stream_id_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcherImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_