Convert //ash from scoped_ptr to std::unique_ptr

ash/display/display_layout_store.h

 // 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.
 
 #ifndef ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_
 #define ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_
 
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/display/manager/display_layout.h"
 
 namespace ash {
 
 class ASH_EXPORT DisplayLayoutStore {
  public:
   DisplayLayoutStore();
   ~DisplayLayoutStore();
 
   void SetDefaultDisplayPlacement(const display::DisplayPlacement& placement);
 
   // Registeres the display layout info for the specified display(s).
   void RegisterLayoutForDisplayIdList(
       const display::DisplayIdList& list,
-      scoped_ptr<display::DisplayLayout> layout);
+      std::unique_ptr<display::DisplayLayout> layout);
 
   // If no layout is registered, it creatas new layout using
   // |default_display_layout_|.
   const display::DisplayLayout& GetRegisteredDisplayLayout(
       const display::DisplayIdList& list);
 
   // Update the multi display state in the display layout for
   // |display_list|.  This creates new display layout if no layout is
   // registered for |display_list|.
   void UpdateMultiDisplayState(const display::DisplayIdList& display_list,
                                bool mirrored,
                                bool default_unified);
 
  private:
   // Creates new layout for display list from |default_display_layout_|.
   display::DisplayLayout* CreateDefaultDisplayLayout(
       const display::DisplayIdList& display_list);
 
   // The default display placement.
   display::DisplayPlacement default_display_placement_;
 
   // Display layout per list of devices.
-  std::map<display::DisplayIdList, scoped_ptr<display::DisplayLayout>> layouts_;
+  std::map<display::DisplayIdList, std::unique_ptr<display::DisplayLayout>>
+      layouts_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayLayoutStore);
 };
 
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_DISPLAY_LAYOUT_STORE_H_