Convert //cc from scoped_ptr to std::unique_ptr.

cc/layers/solid_color_scrollbar_layer.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/solid_color_scrollbar_layer.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
 
 namespace cc {
 
-scoped_ptr<LayerImpl> SolidColorScrollbarLayer::CreateLayerImpl(
+std::unique_ptr<LayerImpl> SolidColorScrollbarLayer::CreateLayerImpl(
     LayerTreeImpl* tree_impl) {
   const bool kIsOverlayScrollbar = true;
   return SolidColorScrollbarLayerImpl::Create(tree_impl,
                                               id(),
                                               orientation(),
                                               thumb_thickness_,
                                               track_start_,
                                               is_left_side_vertical_scrollbar_,
                                               kIsOverlayScrollbar);
 }
@@ skipping 53 matching lines @@
 
   scroll_layer_id_ = layer_id;
   SetNeedsFullTreeSync();
 }
 
 ScrollbarOrientation SolidColorScrollbarLayer::orientation() const {
   return orientation_;
 }
 
 }  // namespace cc