sky-scrollable should use a reasonable fling curve

sky/engine/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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef SKY_ENGINE_CORE_EVENTS_EVENT_H_
 #define SKY_ENGINE_CORE_EVENTS_EVENT_H_
 
 #include "sky/engine/bindings/core/v8/ScriptWrappable.h"
-#include "sky/engine/core/dom/DOMTimeStamp.h"
 #include "sky/engine/core/events/EventPath.h"
 #include "sky/engine/platform/heap/Handle.h"
 #include "sky/engine/wtf/RefCounted.h"
 #include "sky/engine/wtf/text/AtomicString.h"
 
 namespace blink {
 
 class EventTarget;
 class EventDispatcher;
 class ExecutionContext;
@@ skipping 57 matching lines @@
     void setTarget(PassRefPtr<EventTarget>);
 
     EventTarget* currentTarget() const;
     void setCurrentTarget(EventTarget* currentTarget) { m_currentTarget = currentTarget; }
 
     unsigned short eventPhase() const { return m_eventPhase; }
     void setEventPhase(unsigned short eventPhase) { m_eventPhase = eventPhase; }
 
     bool bubbles() const { return m_canBubble; }
     bool cancelable() const { return m_cancelable; }
-    DOMTimeStamp timeStamp() const { return m_createTime; }
+    double timeStamp() const { return m_timeStamp; }
 
     void stopPropagation() { m_propagationStopped = true; }
     void stopImmediatePropagation() { m_immediatePropagationStopped = true; }
 
     // IE Extensions
     EventTarget* srcElement() const { return target(); } // MSIE extension - "the object that fired the event"
 
     bool legacyReturnValue(ExecutionContext*) const;
     void setLegacyReturnValue(ExecutionContext*, bool returnValue);
 
@@ skipping 40 matching lines @@
     bool isBeingDispatched() const { return eventPhase(); }
 
 protected:
     Event();
     Event(const AtomicString& type, bool canBubble, bool cancelable);
     Event(const AtomicString& type, const EventInit&);
 
     virtual void receivedTarget();
     bool dispatched() const { return m_target; }
 
+    double m_timeStamp;
+
 private:
     AtomicString m_type;
     bool m_canBubble;
     bool m_cancelable;
 
     bool m_propagationStopped;
     bool m_immediatePropagationStopped;
     bool m_defaultPrevented;
     bool m_defaultHandled;
     bool m_cancelBubble;
 
     unsigned short m_eventPhase;
     RefPtr<EventTarget> m_currentTarget;
     RefPtr<EventTarget> m_target;
-    DOMTimeStamp m_createTime;
     RefPtr<Event> m_underlyingEvent;
     OwnPtr<EventPath> m_eventPath;
 };
 
 #define DEFINE_EVENT_TYPE_CASTS(typeName) \
     DEFINE_TYPE_CASTS(typeName, Event, event, event->is##typeName(), event.is##typeName())
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_EVENTS_EVENT_H_