media: Add MediaOzonePlatform support

content/common/gpu/media/video_decode_factory_ozone.h

+// Copyright (c) 2014 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_COMMON_GPU_MEDIA_VIDEO_DECODE_FACTORY_OZONE_H_
+#define CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_FACTORY_OZONE_H_
+
+#include "content/common/gpu/media/video_decode_accelerator_impl.h"
+
+namespace media {
+class BitstreamBuffer;
+class PictureBuffer;
+}
+
+// vignatti(TODO): description.
+namespace content {
+
+class VideoDecodeFactoryOzone
+    : public VideoDecodeAcceleratorImpl {
+ public:
+  VideoDecodeFactoryOzone();
+  virtual ~VideoDecodeFactoryOzone();
+
+  // Returns the instance
+  static VideoDecodeFactoryOzone* GetInstance();
+
+  // Sets the implementation delegate. Ownership is retained by the caller.
+  static void SetInstance(VideoDecodeFactoryOzone* impl);
+
+  // media::VideoDecodeAccelerator implementation.
+  virtual bool Initialize(media::VideoCodecProfile profile,
+                          Client* client);
+  virtual void Decode(const media::BitstreamBuffer& bitstream_buffer);
+  virtual void AssignPictureBuffers(
+      const std::vector<media::PictureBuffer>& buffers);
+  virtual void ReusePictureBuffer(int32 picture_buffer_id);
+  virtual void Flush();
+  virtual void Reset();
+  virtual void Destroy();
+
+ private:
+  static VideoDecodeFactoryOzone* impl_; // not owned
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_MEDIA_VIDEO_DECODE_FACTORY_OZONE_H_