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

media/audio/audio_device_thread.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_DEVICE_THREAD_H_
 #define MEDIA_AUDIO_AUDIO_DEVICE_THREAD_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 32 matching lines @@
              int total_segments);
     virtual ~Callback();
 
     // One time initialization for the callback object on the audio thread.
     void InitializeOnAudioThread();
 
     // Derived implementations must call shared_memory_.Map appropriately
     // before Process can be called.
     virtual void MapSharedMemory() = 0;
 
-    // Called whenever we receive notifications about pending data.
-    virtual void Process(uint32 pending_data) = 0;
+    // Called whenever we receive notifications about pending input data.
+    virtual void Process(uint32_t pending_data) = 0;
 
    protected:
     // Protected so that derived classes can access directly.
     // The variables are 'const' since values are calculated/set in the
     // constructor and must never change.
     const AudioParameters audio_parameters_;
     const int samples_per_ms_;
     const int bytes_per_ms_;
 
     base::SharedMemory shared_memory_;
@@ skipping 42 matching lines @@
 
   base::Lock thread_lock_;
   scoped_refptr<AudioDeviceThread::Thread> thread_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioDeviceThread);
 };
 
 }  // namespace media.
 
 #endif  // MEDIA_AUDIO_AUDIO_DEVICE_THREAD_H_