SyntheticEventType   64 Source/platform/PlatformMouseEvent.h     PlatformMouseEvent(const IntPoint& position, const IntPoint& globalPosition, MouseButton button, PlatformEvent::Type type, int clickCount, Modifiers modifiers, SyntheticEventType synthesized, double timestamp)
SyntheticEventType  101 Source/platform/PlatformMouseEvent.h     SyntheticEventType m_synthesized;