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

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

 /*
  * Copyright 2008, The Android Open Source Project
  * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
@@ skipping 193 matching lines @@
 
 TouchEvent::TouchEvent(TouchList* touches,
                        TouchList* targetTouches,
                        TouchList* changedTouches,
                        const AtomicString& type,
                        AbstractView* view,
                        PlatformEvent::Modifiers modifiers,
                        bool cancelable,
                        bool causesScrollingIfUncanceled,
                        bool firstTouchMoveOrStart,
-                       double platformTimeStamp,
+                       TimeTicks platformTimeStamp,
                        TouchAction currentTouchAction,
                        WebPointerProperties::PointerType pointerType)
     // Pass a sourceCapabilities including the ability to fire touchevents when
     // creating this touchevent, which is always created from input device
     // capabilities from EventHandler.
     : UIEventWithKeyState(
           type,
           true,
           cancelable,
           view,
@@ skipping 127 matching lines @@
   return toTouchEvent(EventDispatchMediator::event());
 }
 
 DispatchEventResult TouchEventDispatchMediator::dispatchEvent(
     EventDispatcher& dispatcher) const {
   event().eventPath().adjustForTouchEvent(event());
   return dispatcher.dispatch();
 }
 
 }  // namespace blink