Replace scoped_ptr with std::unique_ptr in //ui

ui/views/examples/tree_view_example.h

 // Copyright (c) 2012 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_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_
 #define UI_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_
 
 #include "base/macros.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/base/models/tree_node_model.h"
@@ skipping 60 matching lines @@
 
   // Control buttons to modify the model.
   Button* add_;
   Button* remove_;
   Button* change_title_;
 
   typedef ui::TreeNodeWithValue<int> NodeType;
 
   ui::TreeNodeModel<NodeType> model_;
 
-  scoped_ptr<MenuRunner> context_menu_runner_;
+  std::unique_ptr<MenuRunner> context_menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(TreeViewExample);
 };
 
 }  // namespace examples
 }  // namespace views
 
 #endif  // UI_VIEWS_EXAMPLES_TREE_VIEW_EXAMPLE_H_