Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform_object.h

 // Copyright 2014 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_OBJECT_H_
 #define UI_OZONE_PLATFORM_OBJECT_H_
 
-#include "base/memory/scoped_ptr.h"
 
 namespace ui {
 
 // Create an instance of platform specific object.
 //
 // This calls a static constructor function based on the --ozone-platform flag.
 //
 // For the platform called "foo", PlatformObject<PlatformWidget> will ultimately
 // call the function with signature
 //
 //   PlatformWidget* CreatePlatformWidgetFoo();
 //
 // A definition of this function for each compiled platform must be provided, or
 // link errors will result.
 //
 // To find the right constructor function, this uses static data defined in the
 // source file generated by the generate_constructor_list.py.
 template <class T>
 class PlatformObject {
  public:
-  static scoped_ptr<T> Create();
+  static std::unique_ptr<T> Create();
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_OBJECT_H_