Attempt to fix audio wedges by restarting all streams.

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 ab9c82b0b28f552902cac9dd71ddd57581d743b0..a6cb705d5490e85efbb67084893f240dcb4fbc0f 100644
--- a/media/audio/audio_manager.h
+++ b/media/audio/audio_manager.h
@@ -175,6 +175,11 @@ class MEDIA_EXPORT AudioManager {
   virtual std::string GetAssociatedOutputDeviceID(
       const std::string& input_device_id) = 0;
 
+  // Called when a component has detected a OS level audio wedge.  Shuts down
+  // all active audio streams and then restarts them transparently.  See
+  // http://crbug.com/160920
+  virtual void FixWedgedAudio() = 0;
+
  protected:
   AudioManager();