function closeDragSession() {
		hideDropIndicator();
		oDragControl = oDropControl = oValidDropControl = oDragSession = null;
		sCalculatedDropPosition = "";
		bDraggedOutOfBrowser = false;
		aValidDragInfos = [];
		aValidDropInfos = [];
	}
Returns the calculated position of the drop action relative to the valid dropped control.

@returns {sap.ui.core.dnd.RelativeDropPosition} The calculated position
@protected