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 e09b36eac2f88b61f8c530bcb4f296560cebd80f..4adab19d6650672cb845e4782137ab6a1751604b 100644
--- a/media/audio/audio_io.h
+++ b/media/audio/audio_io.h
@@ -48,6 +48,10 @@
 // by |samples_per_packet| specified in AudioParameters  when the stream is
 // created.
 
+namespace base {
+class FilePath;
+}
+
 namespace media {
 
 class MEDIA_EXPORT AudioOutputStream {
@@ -104,6 +108,12 @@ class MEDIA_EXPORT AudioOutputStream {
   // Gets the relative volume, with range [0.0, 1.0] inclusive.
   virtual void GetVolume(double* volume) = 0;
 
+  // Enable debug recording.
+  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;