Replace scoped_ptr with std::unique_ptr in //ui

ui/views/corewm/tooltip_aura.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 UI_VIEWS_COREWM_TOOLTIP_AURA_H_
 #define UI_VIEWS_COREWM_TOOLTIP_AURA_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/views/corewm/tooltip.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace gfx {
 class FontList;
 class Size;
 }  // namespace gfx
 
 namespace views {
 
@@ skipping 24 matching lines @@
                const base::string16& tooltip_text,
                const gfx::Point& location) override;
   void Show() override;
   void Hide() override;
   bool IsVisible() override;
 
   // WidgetObserver:
   void OnWidgetDestroying(Widget* widget) override;
 
   // The view showing the tooltip.
-  scoped_ptr<TooltipView> tooltip_view_;
+  std::unique_ptr<TooltipView> tooltip_view_;
 
   // The widget containing the tooltip. May be NULL.
   Widget* widget_;
 
   // The window we're showing the tooltip for. Never NULL and valid while
   // showing.
   aura::Window* tooltip_window_;
 
   DISALLOW_COPY_AND_ASSIGN(TooltipAura);
 };
 
 }  // namespace corewm
 }  // namespace views
 
 #endif  // UI_VIEWS_COREWM_TOOLTIP_AURA_H_