childrenChanged method
Implementation
void childrenChanged(ChildrenChange change) {
if (!isConnected) {
return;
}
// ChildList mutations (especially when inserting many nodes, e.g. infinite
// scrolling) can be extremely expensive if we synchronously flush styles on
// every insertion. ContainerNode already marks the relevant element(s) as
// style-dirty; schedule a coalesced style flush instead and rely on
// updateStyleIfNeeded() being called on-demand (e.g. getComputedStyle).
ownerDocument.scheduleStyleUpdate();
}