Adding audio support to the new webmediaplyer

webkit/media/media_stream_audio_renderer.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 WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_
+#define WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_
+
+#include "base/memory/ref_counted.h"
+#include "media/base/media_export.h"
+
+namespace webkit_media {
+
+class MediaStreamAudioRenderer
+    : public base::RefCountedThreadSafe<MediaStreamAudioRenderer> {
+ public:
+  // Starts rendering audio.
+  virtual void Play() = 0;
+
+  // Temporarily suspends rendering audio.
+  virtual void Pause() = 0;
+
+  // Stops all operations in preparation for being deleted.
+  virtual void Stop() = 0;
+
+  // Sets the output volume.
+  virtual void SetVolume(float volume) = 0;
+
+ protected:
+  friend class base::RefCountedThreadSafe<MediaStreamAudioRenderer>;
+
+  MediaStreamAudioRenderer();
+  virtual ~MediaStreamAudioRenderer();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MediaStreamAudioRenderer);
+};
+
+}  // namespace webkit_media
+
+#endif  // WEBKIT_MEDIA_MEDIA_STREAM_AUDIO_RENDERER_H_