Forward the number of skipped frames by the OS in audio playout.

media/audio/audio_output_stream_sink.h

 // Copyright 2014 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_STREAM_SINK_H_
 #define MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 21 matching lines @@
   void Initialize(const AudioParameters& params,
                   RenderCallback* callback) override;
   void Start() override;
   void Stop() override;
   void Pause() override;
   void Play() override;
   bool SetVolume(double volume) override;
   OutputDevice* GetOutputDevice() override;
 
   // AudioSourceCallback implementation.
-  int OnMoreData(AudioBus* dest, uint32 total_bytes_delay) override;
+  int OnMoreData(AudioBus* dest,
+                 uint32_t total_bytes_delay,
+                 uint32_t frames_skipped) override;
   void OnError(AudioOutputStream* stream) override;
 
  private:
   ~AudioOutputStreamSink() override;
   void ClearCallback();
 
   // Helper methods for running AudioManager methods on the audio thread.
   void DoStart(const AudioParameters& params);
   void DoStop();
   void DoPause();
@@ skipping 23 matching lines @@
 
   // The actual AudioOutputStream, must only be accessed on the audio thread.
   AudioOutputStream* stream_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputStreamSink);
 };
 
 }  // namepace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_