It is time.

ui/wm/core/user_activity_detector.h

Index: ui/wm/core/user_activity_detector.h
diff --git a/ui/wm/core/user_activity_detector.h b/ui/wm/core/user_activity_detector.h
deleted file mode 100644
index 7e5db9fce1ca833e19f8eab959479bb4b6d0730b..0000000000000000000000000000000000000000
--- a/ui/wm/core/user_activity_detector.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// 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_WM_CORE_USER_ACTIVITY_DETECTOR_H_
-#define UI_WM_CORE_USER_ACTIVITY_DETECTOR_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/observer_list.h"
-#include "base/time/time.h"
-#include "ui/events/event_handler.h"
-#include "ui/wm/wm_export.h"
-
-namespace wm {
-
-class UserActivityObserver;
-
-// Watches for input events and notifies observers that the user is active.
-class WM_EXPORT UserActivityDetector : public ui::EventHandler {
- public:
-  // Minimum amount of time between notifications to observers.
-  static const int kNotifyIntervalMs;
-
-  // Amount of time that mouse events should be ignored after notification
-  // is received that displays' power states are being changed.
-  static const int kDisplayPowerChangeIgnoreMouseMs;
-
-  UserActivityDetector();
-  virtual ~UserActivityDetector();
-
-  base::TimeTicks last_activity_time() const { return last_activity_time_; }
-
-  void set_now_for_test(base::TimeTicks now) { now_for_test_ = now; }
-
-  bool HasObserver(UserActivityObserver* observer) const;
-  void AddObserver(UserActivityObserver* observer);
-  void RemoveObserver(UserActivityObserver* observer);
-
-  // Called when displays are about to be turned on or off.
-  void OnDisplayPowerChanging();
-
-  // ui::EventHandler implementation.
-  virtual void OnKeyEvent(ui::KeyEvent* event) override;
-  virtual void OnMouseEvent(ui::MouseEvent* event) override;
-  virtual void OnScrollEvent(ui::ScrollEvent* event) override;
-  virtual void OnTouchEvent(ui::TouchEvent* event) override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-
- private:
-  // Returns |now_for_test_| if set or base::TimeTicks::Now() otherwise.
-  base::TimeTicks GetCurrentTime() const;
-
-  // Updates |last_activity_time_|.  Additionally notifies observers and
-  // updates |last_observer_notification_time_| if enough time has passed
-  // since the last notification.
-  void HandleActivity(const ui::Event* event);
-
-  ObserverList<UserActivityObserver> observers_;
-
-  // Last time at which user activity was observed.
-  base::TimeTicks last_activity_time_;
-
-  // Last time at which we notified observers that the user was active.
-  base::TimeTicks last_observer_notification_time_;
-
-  // If set, used when the current time is needed.  This can be set by tests to
-  // simulate the passage of time.
-  base::TimeTicks now_for_test_;
-
-  // If set, mouse events will be ignored until this time is reached. This
-  // is to avoid reporting mouse events that occur when displays are turned
-  // on or off as user activity.
-  base::TimeTicks honor_mouse_events_time_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserActivityDetector);
-};
-
-}  // namespace wm
-
-#endif  // UI_WM_CORE_USER_ACTIVITY_DETECTOR_H_