Replace scoped_ptr with std::unique_ptr in //ui

ui/display/manager/display_layout_builder.cc

 // Copyright 2016 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 "ui/display/manager/display_layout_builder.h"
 
 #include <algorithm>
 
 namespace display {
 
@@ skipping 39 matching lines @@
 
 DisplayLayoutBuilder& DisplayLayoutBuilder::SetSecondaryPlacement(
     int64_t secondary_id,
     DisplayPlacement::Position position,
     int offset) {
   layout_->placement_list.clear();
   AddDisplayPlacement(secondary_id, layout_->primary_id, position, offset);
   return *this;
 }
 
-scoped_ptr<DisplayLayout> DisplayLayoutBuilder::Build() {
+std::unique_ptr<DisplayLayout> DisplayLayoutBuilder::Build() {
   std::sort(layout_->placement_list.begin(), layout_->placement_list.end(),
             [](const DisplayPlacement& a, const DisplayPlacement& b) {
               return a.display_id < b.display_id;
             });
   return std::move(layout_);
 }
 
 }  // namespace display