Add time stamp to the constructor of the events

third_party/WebKit/Source/core/events/MouseEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 192 matching lines @@
              int movement_x,
              int movement_y,
              WebInputEvent::Modifiers,
              short button,
              unsigned short buttons,
              EventTarget* related_target,
              TimeTicks platform_time_stamp,
              SyntheticEventType,
              const String& region);
 
-  MouseEvent(const AtomicString& type, const MouseEventInit&);
+  MouseEvent(const AtomicString& type,
+             const MouseEventInit&,
+             TimeTicks platform_time_stamp);
+  MouseEvent(const AtomicString& type, const MouseEventInit& init)
+      : MouseEvent(type, init, TimeTicks::Now()) {}
 
   MouseEvent();
 
   short RawButton() const { return button_; }
 
  private:
   friend class MouseEventDispatchMediator;
   void InitMouseEventInternal(const AtomicString& type,
                               bool can_bubble,
                               bool cancelable,
@@ skipping 43 matching lines @@
   MouseEvent& Event() const;
 
   DispatchEventResult DispatchEvent(EventDispatcher&) const override;
 };
 
 DEFINE_EVENT_TYPE_CASTS(MouseEvent);
 
 }  // namespace blink
 
 #endif  // MouseEvent_h