SVGElement::updateRelativeLengthsInformation exhibits O(n^2) behavior in SVGElement::insertedIntoAncestor because it gets called on each descendent that got inserted, and each call to updateRelativeLengthsInformation results in updating of ancestor elements.
Pull request: https://github.com/WebKit/WebKit/pull/23639
<rdar://problem/122060212>
Committed 273936@main (5a5af81309ac): <https://commits.webkit.org/273936@main> Reviewed commits have been landed. Closing PR #23639 and removing active labels.