Moving all the PlatformEvent subclasses from core/platform to platform

Source/platform/PlatformEvent.cpp

Index: Source/platform/PlatformEvent.cpp
diff --git a/Source/core/svg/SVGPoint.h b/Source/platform/PlatformEvent.cpp
similarity index 91%
copy from Source/core/svg/SVGPoint.h
copy to Source/platform/PlatformEvent.cpp
index c258a0f3ad82b1fb865353f85e0ce203f282df54..d3cb64659fdb773dced58fc2e1f66e305e76bb4d 100644
--- a/Source/core/svg/SVGPoint.h
+++ b/Source/platform/PlatformEvent.cpp
@@ -23,15 +23,13 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SVGPoint_h
-#define SVGPoint_h
-
-#include "platform/geometry/FloatRect.h"
+#include "config.h"
+#include "platform/PlatformEvent.h"
 
 namespace WebCore {
 
-typedef FloatPoint SVGPoint;
+PlatformEvent::~PlatformEvent()
+{
+}
 
 } // namespace WebCore
-
-#endif // SVGPoint_h