Remove unused flush operation from Chromium audio.

media/audio/audio_output_ipc.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.
 
 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_IPC_H_
 #define MEDIA_AUDIO_AUDIO_OUTPUT_IPC_H_
 
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "media/audio/audio_parameters.h"
@@ skipping 65 matching lines @@
                             const AudioParameters& params) = 0;
 
   // Starts playing the stream.  This should generate a call to
   // AudioOutputController::Play().
   virtual void PlayStream(int stream_id) = 0;
 
   // Pauses an audio stream.  This should generate a call to
   // AudioOutputController::Pause().
   virtual void PauseStream(int stream_id) = 0;
 
-  // "Flushes" the audio device. This should generate a call to
-  // AudioOutputController::Flush().
-  // TODO(tommi): This is currently neither implemented nor called.  Remove?

[tommi (sloooow) - chröme, 2013/04/16 08:15:11]

w00t!

-  virtual void FlushStream(int stream_id) = 0;
-
   // Closes the audio stream and deletes the matching AudioOutputController
   // instance.  Prior to deleting the AudioOutputController object, a call to
   // AudioOutputController::Close must be made.
   virtual void CloseStream(int stream_id) = 0;
 
   // Sets the volume of the audio stream.
   virtual void SetVolume(int stream_id, double volume) = 0;
 
  protected:
   virtual ~AudioOutputIPC();
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_IPC_H_