Fix content-visibility-canvas.html.
Created attachment 463362 [details] Patch
Pull request: https://github.com/WebKit/WebKit/pull/6080
Committed 256316@main (7fecf966b582): <https://commits.webkit.org/256316@main> Reviewed commits have been landed. Closing PR #6080 and removing active labels.
<rdar://problem/101952381>