Replace scoped_ptr with std::unique_ptr in //ui

ui/events/gesture_detection/motion_event_buffer.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_EVENTS_GESTURE_DETECTION_MOTION_EVENT_BUFFER_H_
 #define UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_BUFFER_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/time/time.h"
 #include "ui/events/gesture_detection/gesture_detection_export.h"
 
 namespace ui {
 
 class MotionEvent;
 class MotionEventGeneric;
 
 // Allows event forwarding and flush requests from a |MotionEventBuffer|.
@@ skipping 54 matching lines @@
   // forwarded event. Otherwise the most recently buffered event will be
   // forwarded, with preceding events as historical entries. Defaults to true.
   bool resample_;
 
   DISALLOW_COPY_AND_ASSIGN(MotionEventBuffer);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_BUFFER_H_