Convert //ash from scoped_ptr to std::unique_ptr

ash/display/display_layout_store.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 <stdio.h>
 
 #include "ash/ash_switches.h"
 #include "ash/display/display_layout_store.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/display_util.h"
@@ skipping 31 matching lines @@
 
 void DisplayLayoutStore::SetDefaultDisplayPlacement(
     const display::DisplayPlacement& placement) {
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (!command_line->HasSwitch(switches::kAshSecondaryDisplayLayout))
     default_display_placement_ = placement;
 }
 
 void DisplayLayoutStore::RegisterLayoutForDisplayIdList(
     const display::DisplayIdList& list,
-    scoped_ptr<display::DisplayLayout> layout) {
+    std::unique_ptr<display::DisplayLayout> layout) {
   // m50/51 dev/beta channel may have bad layout data saved in local state.
   // TODO(oshima): Consider removing this after m53.
   if (list.size() == 2 && layout->placement_list.size() > 1)
     return;
 
   // Do not overwrite the valid data with old invalid date.
   if (layouts_.count(list) && !CompareDisplayIds(list[0], list[1]))
     return;
 
   // Old data may not have the display_id/parent_display_id.
@@ skipping 33 matching lines @@
   DCHECK(layouts_.find(list) != layouts_.end());
   if (layouts_.find(list) == layouts_.end())
     CreateDefaultDisplayLayout(list);
 
   layouts_[list]->mirrored = mirrored;
   layouts_[list]->default_unified = default_unified;
 }
 
 display::DisplayLayout* DisplayLayoutStore::CreateDefaultDisplayLayout(
     const display::DisplayIdList& list) {
-  scoped_ptr<display::DisplayLayout> layout(new display::DisplayLayout);
+  std::unique_ptr<display::DisplayLayout> layout(new display::DisplayLayout);
   // The first display is the primary by default.
   layout->primary_id = list[0];
   layout->placement_list.clear();
   for (size_t i = 0; i < list.size() - 1; i++) {
     display::DisplayPlacement placement(default_display_placement_);
     placement.display_id = list[i + 1];
     placement.parent_display_id = list[i];
     layout->placement_list.push_back(placement);
   }
   layouts_[list] = std::move(layout);
   auto iter = layouts_.find(list);
   return iter->second.get();
 }
 
 }  // namespace ash