Attempt to fix audio wedges by restarting all streams.

media/audio/audio_manager.h

 // Copyright (c) 2012 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.
 
 #ifndef MEDIA_AUDIO_AUDIO_MANAGER_H_
 #define MEDIA_AUDIO_AUDIO_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 157 matching lines @@
 
   // Returns the device id of an output device that belongs to the same hardware
   // as the specified input device.
   // If the hardware has only an input device (e.g. a webcam), the return value
   // will be empty (which the caller can then interpret to be the default output
   // device).  Implementations that don't yet support this feature, must return
   // an empty string.
   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();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioManager);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_H_