DocumentFragment::parseHTML() should take contextElement by reference, instead of taking a pointer and asserting that it is non-null.
Pull request: https://github.com/WebKit/WebKit/pull/10954
Committed 261117@main (18df156da7d2): <https://commits.webkit.org/261117@main> Reviewed commits have been landed. Closing PR #10954 and removing active labels.
<rdar://problem/106181926>