cc: Remove use of PassAs() and constructor-casting with scoped_ptr.

cc/layers/ui_resource_layer_impl.cc

 // Copyright 2013 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/ui_resource_layer_impl.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
 #include "cc/quads/texture_draw_quad.h"
@@ skipping 11 matching lines @@
   vertex_opacity_[0] = 1.0f;
   vertex_opacity_[1] = 1.0f;
   vertex_opacity_[2] = 1.0f;
   vertex_opacity_[3] = 1.0f;
 }
 
 UIResourceLayerImpl::~UIResourceLayerImpl() {}
 
 scoped_ptr<LayerImpl> UIResourceLayerImpl::CreateLayerImpl(
     LayerTreeImpl* tree_impl) {
-  return UIResourceLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
+  return UIResourceLayerImpl::Create(tree_impl, id());
 }
 
 void UIResourceLayerImpl::PushPropertiesTo(LayerImpl* layer) {
   LayerImpl::PushPropertiesTo(layer);
   UIResourceLayerImpl* layer_impl = static_cast<UIResourceLayerImpl*>(layer);
 
   layer_impl->SetUIResourceId(ui_resource_id_);
   layer_impl->SetImageBounds(image_bounds_);
   layer_impl->SetUV(uv_top_left_, uv_bottom_right_);
   layer_impl->SetVertexOpacity(vertex_opacity_);
@@ skipping 116 matching lines @@
   list->AppendDouble(vertex_opacity_[3]);
   result->Set("VertexOpacity", list);
 
   result->Set("UVTopLeft", MathUtil::AsValue(uv_top_left_).release());
   result->Set("UVBottomRight", MathUtil::AsValue(uv_bottom_right_).release());
 
   return result;
 }
 
 }  // namespace cc