cc: Add DISALLOW_COPY_AND_ASSIGN where appropriate.

cc/layers/video_layer.h

 // Copyright 2010 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 CC_LAYERS_VIDEO_LAYER_H_
 #define CC_LAYERS_VIDEO_LAYER_H_
 
 #include "base/callback.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer.h"
@@ skipping 13 matching lines @@
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
       OVERRIDE;
 
  private:
   explicit VideoLayer(VideoFrameProvider* provider);
   virtual ~VideoLayer();
 
   // This pointer is only for passing to VideoLayerImpl's constructor. It should
   // never be dereferenced by this class.
   VideoFrameProvider* provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(VideoLayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_VIDEO_LAYER_H_