Log actual streams, not output controllers.

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 60 matching lines @@
   // opened.
   bool CreateAndOpenStream();
 
   // Before a stream is reused, it should sit idle for a bit.  This task is
   // called once that time has elapsed.
   void StopStreamTask();
 
   // Called by |close_timer_|. Closes all pending streams.
   void ClosePendingStreams();
 
+  void LogCloseStream(AudioOutputStream* stream);
+
   base::TimeDelta pause_delay_;
   size_t paused_proxies_;
   typedef std::list<AudioOutputStream*> AudioOutputStreamList;
   AudioOutputStreamList idle_streams_;
   AudioOutputStreamList pausing_streams_;
 
   // Used to post delayed tasks to ourselves that we cancel inside Shutdown().
   base::WeakPtrFactory<AudioOutputDispatcherImpl> weak_this_;
   base::DelayTimer<AudioOutputDispatcherImpl> close_timer_;
 
   AudioStreamMap proxy_to_physical_map_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcherImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_