Reland 153623004: Remove the unified IO code on the browser

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 69c5f16edfd348e51901046f0b43558cfd36b362..d070b6b243eb3b75ae0d2b0061e6c10f4c2599ff 100644
--- a/media/audio/audio_output_dispatcher.h
+++ b/media/audio/audio_output_dispatcher.h
@@ -38,8 +38,7 @@ class MEDIA_EXPORT AudioOutputDispatcher
  public:
   AudioOutputDispatcher(AudioManager* audio_manager,
                         const AudioParameters& params,
-                        const std::string& output_device_id,
-                        const std::string& input_device_id);
+                        const std::string& device_id);
 
   // Called by AudioOutputProxy to open the stream.
   // Returns false, if it fails to open it.
@@ -73,8 +72,7 @@ class MEDIA_EXPORT AudioOutputDispatcher
   virtual void CloseStreamsForWedgeFix() = 0;
   virtual void RestartStreamsForWedgeFix() = 0;
 
-  // Accessor to the input device id used by unified IO.
-  const std::string& input_device_id() const { return input_device_id_; }
+  const std::string& device_id() const { return device_id_; }
 
  protected:
   friend class base::RefCountedThreadSafe<AudioOutputDispatcher>;
@@ -85,8 +83,7 @@ class MEDIA_EXPORT AudioOutputDispatcher
   AudioManager* audio_manager_;
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   const AudioParameters params_;
-  std::string output_device_id_;
-  const std::string input_device_id_;
+  std::string device_id_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcher);