SVGLayerTransformUpdater currently lives in RenderSVGContainer, but RenderSVGRoot wants to use it as well.
Pull request: https://github.com/WebKit/WebKit/pull/2360
Committed 252449@main (82b4ea6a8a38): <https://commits.webkit.org/252449@main> Reviewed commits have been landed. Closing PR #2360 and removing active labels.
<rdar://problem/97007226>