Replace scoped_ptr with std::unique_ptr in //ui

ui/views/mouse_watcher.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_MOUSE_WATCHER_H_
 #define UI_VIEWS_MOUSE_WATCHER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/views/views_export.h"
 
 namespace gfx {
 class Point;
 }
 
 namespace views {
 
@@ skipping 51 matching lines @@
  private:
   class Observer;
 
   // Are we currently observing events?
   bool is_observing() const { return observer_.get() != NULL; }
 
   // Notifies the listener and stops watching events.
   void NotifyListener();
 
   // Host we're listening for events over.
-  scoped_ptr<MouseWatcherHost> host_;
+  std::unique_ptr<MouseWatcherHost> host_;
 
   // Our listener.
   MouseWatcherListener* listener_;
 
   // Does the actual work of listening for mouse events.
-  scoped_ptr<Observer> observer_;
+  std::unique_ptr<Observer> observer_;
 
   // See description above setter.
   base::TimeDelta notify_on_exit_time_;
 
   DISALLOW_COPY_AND_ASSIGN(MouseWatcher);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_MOUSE_WATCHER_H_