Remove implicit conversions from scoped_refptr to T* in cc/

cc/layers/layer_lists.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/layer_lists.h"
 
 #include "cc/layers/layer.h"
 
 namespace cc {
 
 RenderSurfaceLayerList::RenderSurfaceLayerList() {}
 
 RenderSurfaceLayerList::~RenderSurfaceLayerList() {
   for (size_t i = 0; i < size(); ++i)
     at(size() - 1 - i)->ClearRenderSurface();
 }
 
 Layer* RenderSurfaceLayerList::at(size_t i) const {
-  return list_.at(i);
+  return list_.at(i).get();
 }
 
 void RenderSurfaceLayerList::pop_back() {
   list_.pop_back();
 }
 
 void RenderSurfaceLayerList::push_back(const scoped_refptr<Layer>& layer) {
   list_.push_back(layer);
 }
 
 Layer* RenderSurfaceLayerList::back() {
-  return list_.back();
+  return list_.back().get();
 }
 
 size_t RenderSurfaceLayerList::size() const {
   return list_.size();
 }
 
 scoped_refptr<Layer>& RenderSurfaceLayerList::operator[](size_t i) {
   return list_[i];
 }
 const scoped_refptr<Layer>& RenderSurfaceLayerList::operator[](size_t i) const {
@@ skipping 16 matching lines @@
   return list_.end();
 }
 
 void RenderSurfaceLayerList::clear() {
   for (size_t i = 0; i < list_.size(); ++i)
     DCHECK(!list_[i]->render_surface());
   list_.clear();
 }
 
 }  // namespace cc