Forward output glitch information from stream WebRTC log

media/audio/audio_manager.h

Index: media/audio/audio_manager.h
diff --git a/media/audio/audio_manager.h b/media/audio/audio_manager.h
index 90dba8ade735804682740ff57f852fe171e3c78c..585ae9c8766ae0ac58953e2fe53bc3f16a70bd4e 100644
--- a/media/audio/audio_manager.h
+++ b/media/audio/audio_manager.h
@@ -8,6 +8,7 @@
 #include <memory>
 #include <string>
 
+#include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
@@ -132,6 +133,11 @@ class MEDIA_EXPORT AudioManager {
   // Audio worker thread (see GetWorkerTaskRunner()).
   virtual void GetAudioOutputDeviceNames(AudioDeviceNames* device_names) = 0;
 
+  // Log callback used for sending log messages from a stream to the object
+  // that manages the stream.
+  using StatisticsCallback =

[DaleCurtis, 2016/05/19 20:34:37]

Again, this should just be a base::Callback(string).

[Henrik Grunell, 2016/05/23 17:13:54]

Done.

+      base::Callback<void(AudioOutputStream*, const std::string&, int)>;
+
   // Factory for all the supported stream formats. |params| defines parameters
   // of the audio stream to be created.
   //
@@ -155,7 +161,8 @@ class MEDIA_EXPORT AudioManager {
   // Do not free the returned AudioOutputStream. It is owned by AudioManager.
   virtual AudioOutputStream* MakeAudioOutputStream(
       const AudioParameters& params,
-      const std::string& device_id) = 0;
+      const std::string& device_id,
+      const StatisticsCallback& statistics_callback) = 0;
 
   // Creates new audio output proxy. A proxy implements
   // AudioOutputStream interface, but unlike regular output stream