Moving all the PlatformEvent subclasses from core/platform to platform

Source/core/platform/PlatformTouchEvent.h

-/*
-    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
-
-    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 PlatformTouchEvent_h
-#define PlatformTouchEvent_h
-
-#include "core/platform/PlatformTouchPoint.h"
-#include "platform/PlatformEvent.h"
-#include "wtf/Vector.h"
-
-namespace WebCore {
-
-
-class PlatformTouchEvent : public PlatformEvent {
-public:
-    PlatformTouchEvent()
-        : PlatformEvent(PlatformEvent::TouchStart)
-    {
-    }
-
-    const Vector<PlatformTouchPoint>& touchPoints() const { return m_touchPoints; }
-
-protected:
-    Vector<PlatformTouchPoint> m_touchPoints;
-};
-
-}
-
-#endif // PlatformTouchEvent_h