Audio output debug recording.

media/audio/audio_io.h

Index: media/audio/audio_io.h
diff --git a/media/audio/audio_io.h b/media/audio/audio_io.h
index 6ab50aa952e88e5ca97c3d903d40da530d59e104..060f2f6ec5c446e76455b07a9672865025bcfa5c 100644
--- a/media/audio/audio_io.h
+++ b/media/audio/audio_io.h
@@ -7,6 +7,7 @@
 
 #include <stdint.h>
 
+#include "base/files/file_path.h"
 #include "base/time/time.h"
 #include "media/base/audio_bus.h"
 
@@ -106,6 +107,12 @@ class MEDIA_EXPORT AudioOutputStream {
   // Gets the relative volume, with range [0.0, 1.0] inclusive.
   virtual void GetVolume(double* volume) = 0;
 
+  // Enable debug recording. A file type extension is added to |file_name|.
+  virtual void EnableDebugRecording(const base::FilePath& file_name) = 0;
+
+  // Disable debug recording.
+  virtual void DisableDebugRecording() = 0;
+
   // Close the stream. This also generates AudioSourceCallback::OnClose().
   // After calling this method, the object should not be used anymore.
   virtual void Close() = 0;