Fixing audio in mac

media/audio/mac/audio_output_mac.h

 // Copyright (c) 2009 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_MAC_OUTPUT_MAC_H_
 #define MEDIA_AUDIO_MAC_OUTPUT_MAC_H_
 
 #include <AudioToolbox/AudioQueue.h>
 #include <AudioToolbox/AudioFormat.h>
 
@@ skipping 38 matching lines @@
   // Structure that holds the stream format details such as bitrate.
   AudioStreamBasicDescription format_;
   // Handle to the OS audio queue object.
   AudioQueueRef audio_queue_;
   // Array of pointers to the OS managed audio buffers.
   AudioQueueBufferRef buffer_[kNumBuffers];
   // Pointer to the object that will provide the audio samples.
   AudioSourceCallback* source_;
   // Our creator, the audio manager needs to be notified when we close.
   AudioManagerMac* manager_;
+  // Number of bytes for make a silence buffer.
+  int silence_bytes_;
+  // Number of bytes yet to be played in audio buffer.
+  int pending_bytes_;
 
   DISALLOW_COPY_AND_ASSIGN(PCMQueueOutAudioOutputStream);
 };
 
 #endif  // MEDIA_AUDIO_MAC_OUTPUT_MAC_H_