Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/wayland/wayland_display.h

 // 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.
 
 #ifndef UI_OZONE_PLATFORM_WAYLAND_WAYLAND_DISPLAY_H_
 #define UI_OZONE_PLATFORM_WAYLAND_WAYLAND_DISPLAY_H_
 
 #include <map>
 
 #include "base/message_loop/message_pump_libevent.h"
@@ skipping 55 matching lines @@
 
   std::map<gfx::AcceleratedWidget, WaylandWindow*> window_map_;
 
   wl::Object<wl_display> display_;
   wl::Object<wl_registry> registry_;
   wl::Object<wl_compositor> compositor_;
   wl::Object<wl_seat> seat_;
   wl::Object<wl_shm> shm_;
   wl::Object<xdg_shell> shell_;
 
-  scoped_ptr<WaylandPointer> pointer_;
+  std::unique_ptr<WaylandPointer> pointer_;
 
   bool scheduled_flush_ = false;
   bool watching_ = false;
   base::MessagePumpLibevent::FileDescriptorWatcher controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WaylandDisplay);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_WAYLAND_WAYLAND_DISPLAY_H_