Makes AudioOutputDispatcher non-ref-counted.

media/audio/audio_output_dispatcher.h

Index: media/audio/audio_output_dispatcher.h
diff --git a/media/audio/audio_output_dispatcher.h b/media/audio/audio_output_dispatcher.h
index c7dbf0efd938018fcbc69dfaab92e7101087d48c..f94f95f65389c657cef60a3393acc0ceebbd45f0 100644
--- a/media/audio/audio_output_dispatcher.h
+++ b/media/audio/audio_output_dispatcher.h
@@ -19,7 +19,6 @@
 #define MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_H_
 
 #include "base/macros.h"
-#include "base/memory/ref_counted.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_manager.h"
 #include "media/base/audio_parameters.h"
@@ -32,12 +31,12 @@ namespace media {
 
 class AudioOutputProxy;
 
-class MEDIA_EXPORT AudioOutputDispatcher
-    : public base::RefCountedThreadSafe<AudioOutputDispatcher> {
+class MEDIA_EXPORT AudioOutputDispatcher {
  public:
   AudioOutputDispatcher(AudioManager* audio_manager,
                         const AudioParameters& params,
                         const std::string& device_id);
+  virtual ~AudioOutputDispatcher();
 
   // Called by AudioOutputProxy to open the stream.
   // Returns false, if it fails to open it.
@@ -61,15 +60,9 @@ class MEDIA_EXPORT AudioOutputDispatcher
   // Called by AudioOutputProxy when the stream is closed.
   virtual void CloseStream(AudioOutputProxy* stream_proxy) = 0;
 
-  // Called on the audio thread when the AudioManager is shutting down.
-  virtual void Shutdown() = 0;
-
   const std::string& device_id() const { return device_id_; }
 
  protected:
-  friend class base::RefCountedThreadSafe<AudioOutputDispatcher>;
-  virtual ~AudioOutputDispatcher();
-
   // A no-reference-held pointer (we don't want circular references) back to the
   // AudioManager that owns this object.
   AudioManager* audio_manager_;