void*           aPropertyValue, void*           aDtorData)
void*           aPropertyValue)
DestroyOverflowLines(void*           aFrame,                     nsIAtom*        aPropertyName,                     void*           aPropertyValue,                     void*           aDtorData){  if (aPropertyValue) {    nsLineList* lines = NS_STATIC_CAST(nsLineList*, aPropertyValue);    nsPresContext *context = NS_STATIC_CAST(nsPresContext*, aDtorData);    nsLineBox::DeleteLineList(context, *lines);    delete lines;  }}