pub(crate) trait LayoutShadowRootHelpers<'dom> {
// Required methods
fn get_host_for_layout(self) -> LayoutDom<'dom, Element>;
fn get_style_data_for_layout(self) -> &'dom CascadeData;
fn is_ua_widget(&self) -> bool;
unsafe fn flush_stylesheets(
self,
stylist: &mut Stylist,
guard: &SharedRwLockReadGuard<'_>,
);
}