Add time stamp to the constructor of the events

third_party/WebKit/Source/core/events/Event.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, 2007, 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
@@ skipping 240 matching lines @@
         ComposedMode,
         TimeTicks platform_time_stamp);
   Event(const AtomicString& type,
         bool can_bubble,
         bool cancelable,
         TimeTicks platform_time_stamp);
   Event(const AtomicString& type,
         bool can_bubble,
         bool cancelable,
         ComposedMode = ComposedMode::kScoped);
-  Event(const AtomicString& type, const EventInit&);
+  Event(const AtomicString& type,
+        const EventInit&,
+        TimeTicks platform_time_stamp);
+  Event(const AtomicString& type, const EventInit& init)
+      : Event(type, init, TimeTicks::Now()) {}
 
   virtual void ReceivedTarget();
 
   void SetCanBubble(bool bubble) { can_bubble_ = bubble; }
 
   PassiveMode HandlingPassive() const { return handling_passive_; }
 
  private:
   enum EventPathMode { kEmptyAfterDispatch, kNonEmptyAfterDispatch };
 
@@ skipping 31 matching lines @@
   TimeTicks platform_time_stamp_;
 };
 
 #define DEFINE_EVENT_TYPE_CASTS(typeName)                          \
   DEFINE_TYPE_CASTS(typeName, Event, event, event->Is##typeName(), \
                     event.Is##typeName())
 
 }  // namespace blink
 
 #endif  // Event_h