Strip out stream counting from AudioRendererHost.

content/browser/renderer_host/media/audio_output_delegate.h

 // Copyright 2016 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 CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_OUTPUT_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_OUTPUT_DELEGATE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 24 matching lines @@
 // is operated on the IO thread.
 class CONTENT_EXPORT AudioOutputDelegate
     : public media::AudioOutputController::EventHandler {
  public:
   class CONTENT_EXPORT EventHandler {
    public:
     virtual ~EventHandler() {}
 
     // All these methods are called on the IO thread.
 
-    // Called when the state changes between playing and not playing.
-    virtual void OnStreamStateChanged(bool playing) = 0;
-
     // Called when construction is finished and the stream is ready for
     // playout.
     virtual void OnStreamCreated(int stream_id,
                                  base::SharedMemory* shared_memory,
                                  base::CancelableSyncSocket* socket) = 0;
 
     // Called if stream encounters an error and has become unusable.
     virtual void OnStreamError(int stream_id) = 0;
   };
 
@@ skipping 78 matching lines @@
   bool playing_ = false;
   base::WeakPtr<AudioOutputDelegate> weak_this_;
   base::WeakPtrFactory<AudioOutputDelegate> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDelegate);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_OUTPUT_DELEGATE_H_