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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 #include "cc/layers/video_layer.h"
      6 
      7 #include "cc/layers/video_layer_impl.h"
      8 
      9 namespace cc {
     10 
     11 scoped_refptr<VideoLayer> VideoLayer::Create(VideoFrameProvider* provider) {
     12   return make_scoped_refptr(new VideoLayer(provider));
     13 }
     14 
     15 VideoLayer::VideoLayer(VideoFrameProvider* provider) : provider_(provider) {
     16   DCHECK(provider_);
     17 }
     18 
     19 VideoLayer::~VideoLayer() {}
     20 
     21 scoped_ptr<LayerImpl> VideoLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
     22   return VideoLayerImpl::Create(tree_impl, id(), provider_).PassAs<LayerImpl>();
     23 }
     24 
     25 bool VideoLayer::Update(ResourceUpdateQueue* queue,
     26                         const OcclusionTracker<Layer>* occlusion) {
     27   bool updated = Layer::Update(queue, occlusion);
     28 
     29   // Video layer doesn't update any resources from the main thread side,
     30   // but repaint rects need to be sent to the VideoLayerImpl via commit.
     31   //
     32   // This is the inefficient legacy redraw path for videos.  It's better to
     33   // communicate this directly to the VideoLayerImpl.
     34   updated |= !update_rect_.IsEmpty();
     35 
     36   return updated;
     37 }
     38 
     39 }  // namespace cc
     40