Remove parts of //cc we aren't using

cc/layers/video_layer.cc

-// 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.
-
-#include "cc/layers/video_layer.h"
-
-#include "cc/layers/video_layer_impl.h"
-
-namespace cc {
-
-scoped_refptr<VideoLayer> VideoLayer::Create(
-    VideoFrameProvider* provider,
-    media::VideoRotation video_rotation) {
-  return make_scoped_refptr(new VideoLayer(provider, video_rotation));
-}
-
-VideoLayer::VideoLayer(VideoFrameProvider* provider,
-                       media::VideoRotation video_rotation)
-    : provider_(provider), video_rotation_(video_rotation) {
-  DCHECK(provider_);
-}
-
-VideoLayer::~VideoLayer() {}
-
-scoped_ptr<LayerImpl> VideoLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
-  scoped_ptr<VideoLayerImpl> impl =
-      VideoLayerImpl::Create(tree_impl, id(), provider_, video_rotation_);
-  return impl.Pass();
-}
-
-bool VideoLayer::Update(ResourceUpdateQueue* queue,
-                        const OcclusionTracker<Layer>* occlusion) {
-  bool updated = Layer::Update(queue, occlusion);
-
-  // Video layer doesn't update any resources from the main thread side,
-  // but repaint rects need to be sent to the VideoLayerImpl via commit.
-  //
-  // This is the inefficient legacy redraw path for videos.  It's better to
-  // communicate this directly to the VideoLayerImpl.
-  updated |= !update_rect_.IsEmpty();
-
-  return updated;
-}
-
-}  // namespace cc