Replace scoped_ptr with std::unique_ptr in //ui

ui/base/user_activity/user_activity_detector.cc

 // 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.
 
 #include "ui/base/user_activity/user_activity_detector.h"
 
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
@@ skipping 73 matching lines @@
   observers_.RemoveObserver(observer);
 }
 
 void UserActivityDetector::OnDisplayPowerChanging() {
   honor_mouse_events_time_ = GetCurrentTime() +
       base::TimeDelta::FromMilliseconds(kDisplayPowerChangeIgnoreMouseMs);
 }
 
 void UserActivityDetector::DidProcessEvent(
     const PlatformEvent& platform_event) {
-  scoped_ptr<ui::Event> event(ui::EventFromNative(platform_event));
+  std::unique_ptr<ui::Event> event(ui::EventFromNative(platform_event));
   ProcessReceivedEvent(event.get());
 }
 
 base::TimeTicks UserActivityDetector::GetCurrentTime() const {
   return !now_for_test_.is_null() ? now_for_test_ : base::TimeTicks::Now();
 }
 
 void UserActivityDetector::ProcessReceivedEvent(const ui::Event* event) {
   if (!event)
     return;
@@ skipping 16 matching lines @@
       (now - last_observer_notification_time_).InMillisecondsF() >=
       kNotifyIntervalMs) {
     if (VLOG_IS_ON(1))
       VLOG(1) << "Reporting user activity: " << GetEventDebugString(event);
     FOR_EACH_OBSERVER(UserActivityObserver, observers_, OnUserActivity(event));
     last_observer_notification_time_ = now;
   }
 }
 
 }  // namespace ui