Disable preroll duration increase on underflow for MediaSource playback.

media/base/audio_renderer.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_BASE_AUDIO_RENDERER_H_
 #define MEDIA_BASE_AUDIO_RENDERER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/time.h"
@@ skipping 63 matching lines @@
   // when complete.
   virtual void Stop(const base::Closure& callback) = 0;
 
   // Updates the current playback rate.
   virtual void SetPlaybackRate(float playback_rate) = 0;
 
   // Sets the output volume.
   virtual void SetVolume(float volume) = 0;
 
   // Resumes playback after underflow occurs.
-  //
-  // |buffer_more_audio| is set to true if you want to increase the size of the
-  // decoded audio buffer.
-  virtual void ResumeAfterUnderflow(bool buffer_more_audio) = 0;
+  virtual void ResumeAfterUnderflow() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioRenderer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_RENDERER_H_