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1 // Copyright 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CC_LAYERS_VIDEO_LAYER_H_
6 #define CC_LAYERS_VIDEO_LAYER_H_
7 
8 #include "base/callback.h"
9 #include "cc/base/cc_export.h"
10 #include "cc/layers/layer.h"
11 
12 namespace media { class VideoFrame; }
13 
14 namespace cc {
15 
16 class VideoFrameProvider;
17 class VideoLayerImpl;
18 
19 // A Layer that contains a Video element.
20 class CC_EXPORT VideoLayer : public Layer {
21  public:
22   static scoped_refptr<VideoLayer> Create(VideoFrameProvider* provider);
23 
24   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
25       OVERRIDE;
26 
27   virtual bool Update(ResourceUpdateQueue* queue,
28                       const OcclusionTracker<Layer>* occlusion) OVERRIDE;
29 
30  private:
31   explicit VideoLayer(VideoFrameProvider* provider);
32   virtual ~VideoLayer();
33 
34   // This pointer is only for passing to VideoLayerImpl's constructor. It should
35   // never be dereferenced by this class.
36   VideoFrameProvider* provider_;
37 
38   DISALLOW_COPY_AND_ASSIGN(VideoLayer);
39 };
40 
41 }  // namespace cc
42 
43 #endif  // CC_LAYERS_VIDEO_LAYER_H_
44