Remove WebVideoFrame, WebVideoFrameProvider, and WebVideoLayer.

webkit/compositor_bindings/web_layer_impl.cc

 // Copyright 2011 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 "webkit/compositor_bindings/web_layer_impl.h"
 
 #include "base/string_util.h"
 #include "cc/animation/animation.h"
 #include "cc/base/region.h"
 #include "cc/layers/layer.h"
@@ skipping 308 matching lines @@
   return layer_->fixed_to_container_layer();
 }
 
 void WebLayerImpl::setScrollClient(
     WebKit::WebLayerScrollClient* scroll_client) {
   layer_->set_layer_scroll_client(scroll_client);
 }
 
 Layer* WebLayerImpl::layer() const { return layer_.get(); }
 
+bool WebLayerImpl::isOrphan() const { return !layer_->layer_tree_host(); }

[scherkus (not reviewing), 2013/03/18 21:38:24]

q:
  1) is layer_ guaranteed to be non-null? OR
  2) are we guaranteed clients won't call isOrphan() when layer_ is null? (i.e.,
doing so would be programmer error)

[danakj, 2013/03/18 21:57:59]

yes layer_ is not null. it is set to a valid pointer in the constructor.
Layer::Create() always returns a new layer. (see the use of layer_ unguarded in
the current destructor).

[scherkus (not reviewing), 2013/03/18 23:34:18]

ah! thanks for the explanation

+
 }  // namespace WebKit