Update AudioRenderer API to fire changes in BufferingState.

media/base/mock_filters.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_MOCK_FILTERS_H_
 #define MEDIA_BASE_MOCK_FILTERS_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 123 matching lines @@
 
 class MockAudioRenderer : public AudioRenderer {
  public:
   MockAudioRenderer();
   virtual ~MockAudioRenderer();
 
   // AudioRenderer implementation.
   MOCK_METHOD7(Initialize, void(DemuxerStream* stream,
                                 const PipelineStatusCB& init_cb,
                                 const StatisticsCB& statistics_cb,
-                                const base::Closure& underflow_cb,
                                 const TimeCB& time_cb,
+                                const BufferingStateCB& buffering_state_cb,
                                 const base::Closure& ended_cb,
                                 const PipelineStatusCB& error_cb));
   MOCK_METHOD0(StartRendering, void());
   MOCK_METHOD0(StopRendering, void());
   MOCK_METHOD1(Flush, void(const base::Closure& callback));
   MOCK_METHOD1(Stop, void(const base::Closure& callback));
   MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
-  MOCK_METHOD2(Preroll, void(base::TimeDelta time, const PipelineStatusCB& cb));
+  MOCK_METHOD1(StartPlayingFrom, void(base::TimeDelta time));
   MOCK_METHOD1(SetVolume, void(float volume));
   MOCK_METHOD0(ResumeAfterUnderflow, void());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioRenderer);
 };
 
 class MockTextTrack : public TextTrack {
  public:
   MockTextTrack();
@@ skipping 44 matching lines @@
  public:
   MockStatisticsCB();
   ~MockStatisticsCB();
 
   MOCK_METHOD1(OnStatistics, void(const media::PipelineStatistics& statistics));
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_MOCK_FILTERS_H_