Replace scoped_ptr with std::unique_ptr in //ui

ui/aura/scoped_window_targeter.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_AURA_SCOPED_WINDOW_TARGETER_H_
 #define UI_AURA_SCOPED_WINDOW_TARGETER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_observer.h"
 
 namespace ui {
 class EventTargeter;
 }
 
 namespace aura {
 
 class Window;
 
 // ScopedWindowTargeter is used to temporarily replace the event-targeter for a
 // window. Upon construction, it installs a new targeter on the window, and upon
 // destruction, it restores the previous event-targeter on the window.
 class AURA_EXPORT ScopedWindowTargeter : public WindowObserver {
  public:
   ScopedWindowTargeter(Window* window,
-                       scoped_ptr<ui::EventTargeter> new_targeter);
+                       std::unique_ptr<ui::EventTargeter> new_targeter);
 
   ~ScopedWindowTargeter() override;
 
   ui::EventTargeter* old_targeter() {
     return old_targeter_.get();
   }
 
  private:
   // WindowObserver:
   void OnWindowDestroyed(Window* window) override;
 
   Window* window_;
-  scoped_ptr<ui::EventTargeter> old_targeter_;
+  std::unique_ptr<ui::EventTargeter> old_targeter_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedWindowTargeter);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_SCOPED_WINDOW_TARGETER_H_