Forward output glitch information from stream WebRTC log

media/audio/mac/audio_auhal_mac.h

 // Copyright 2013 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.
 //
 // Implementation notes:
 //
 // - It is recommended to first acquire the native sample rate of the default
 //   output device and then use the same rate when creating this object.
 //   Use AudioManagerMac::HardwareSampleRate() to retrieve the sample rate.
 // - Calling Close() also leads to self destruction.
@@ skipping 12 matching lines @@
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/cancelable_callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "media/audio/audio_io.h"
+#include "media/audio/audio_manager.h"
 #include "media/base/audio_parameters.h"
 
 namespace media {
 
 class AudioManagerMac;
 class AudioPullFifo;
 
 // Implementation of AudioOuputStream for Mac OS X using the
 // AUHAL Audio Unit present in OS 10.4 and later.
 // It is useful for low-latency output.
@@ skipping 23 matching lines @@
 // between the browser and render process in AudioSyncReader.
 // We need to fix this.
 
 class AUHALStream : public AudioOutputStream {
  public:
   // |manager| creates this object.
   // |device| is the CoreAudio device to use for the stream.
   // It will often be the default output device.
   AUHALStream(AudioManagerMac* manager,
               const AudioParameters& params,
-              AudioDeviceID device);
+              AudioDeviceID device,
+              const AudioManager::LogCallback& log_callback);
   // The dtor is typically called by the AudioManager only and it is usually
   // triggered by calling AudioOutputStream::Close().
   ~AUHALStream() override;
 
   // Implementation of AudioOutputStream.
   bool Open() override;
   void Close() override;
   void Start(AudioSourceCallback* callback) override;
   void Stop() override;
   void SetVolume(double volume) override;
@@ skipping 120 matching lines @@
   // NOTE: Float64 and UInt32 types are used for native API compatibility.
   Float64 last_sample_time_;
   UInt32 last_number_of_frames_;
   UInt32 total_lost_frames_;
   UInt32 largest_glitch_frames_;
   int glitches_detected_;
 
   // Used to defer Start() to workaround http://crbug.com/160920.
   base::CancelableClosure deferred_start_cb_;
 
+  // Callback to send statistics info.
+  AudioManager::LogCallback log_callback_;
+
   // Used to make sure control functions (Start(), Stop() etc) are called on the
   // right thread.
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(AUHALStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_MAC_AUDIO_AUHAL_MAC_H_