Use WTF::TimeTicks to represent timestamp in Platform/Core event types

third_party/WebKit/Source/core/events/WheelEvent.cpp

 /*
  * 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, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. 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 85 matching lines @@
 }
 
 WheelEvent::WheelEvent(const FloatPoint& wheelTicks,
                        const FloatPoint& rawDelta,
                        unsigned deltaMode,
                        AbstractView* view,
                        const IntPoint& screenLocation,
                        const IntPoint& windowLocation,
                        PlatformEvent::Modifiers modifiers,
                        unsigned short buttons,
-                       double platformTimeStamp,
+                       TimeTicks platformTimeStamp,
                        int resendingPluginId,
                        bool hasPreciseScrollingDeltas,
                        RailsMode railsMode,
                        bool cancelable)
     : MouseEvent(EventTypeNames::wheel,
                  true,
                  cancelable,
                  view,
                  0,
                  screenLocation.x(),
@@ skipping 32 matching lines @@
 
 #if OS(MACOSX)
 WheelEvent::WheelEvent(const FloatPoint& wheelTicks,
                        const FloatPoint& rawDelta,
                        unsigned deltaMode,
                        AbstractView* view,
                        const IntPoint& screenLocation,
                        const IntPoint& windowLocation,
                        PlatformEvent::Modifiers modifiers,
                        unsigned short buttons,
-                       double platformTimeStamp,
+                       TimeTicks platformTimeStamp,
                        int resendingPluginId,
                        bool hasPreciseScrollingDeltas,
                        RailsMode railsMode,
                        bool cancelable,
                        WheelEventPhase phase,
                        WheelEventPhase momentumPhase)
     : MouseEvent(EventTypeNames::wheel,
                  true,
                  cancelable,
                  view,
@@ skipping 42 matching lines @@
 
 EventDispatchMediator* WheelEvent::createMediator() {
   return EventDispatchMediator::create(this);
 }
 
 DEFINE_TRACE(WheelEvent) {
   MouseEvent::trace(visitor);
 }
 
 }  // namespace blink