Moving all the PlatformEvent subclasses from core/platform to platform

Source/core/events/GestureEvent.h

 /*
  * Copyright (C) 2012 Google Inc. 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef GestureEvent_h
 #define GestureEvent_h
 
 #include "core/events/EventDispatcher.h"
 #include "core/events/MouseRelatedEvent.h"
-#include "core/platform/PlatformGestureEvent.h"
+#include "platform/PlatformGestureEvent.h"
 
 namespace WebCore {
 
 class GestureEvent : public MouseRelatedEvent {
 public:
     virtual ~GestureEvent() { }
 
     static PassRefPtr<GestureEvent> create();
     static PassRefPtr<GestureEvent> create(PassRefPtr<AbstractView>, const PlatformGestureEvent&);
 
@@ skipping 31 matching lines @@
 
 inline GestureEvent* toGestureEvent(Event* event)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!event || event->isGestureEvent());
     return static_cast<GestureEvent*>(event);
 }
 
 } // namespace WebCore
 
 #endif // GestureEvent_h