See: https://searchfox.org/wubkat/source/Source/WebCore/dom/DocumentOrShadowRootFullscreen.cpp#39
<rdar://problem/102937497>
Pull request: https://github.com/WebKit/WebKit/pull/7187
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/37339
Committed 257457@main (9d1bb9c5d566): <https://commits.webkit.org/257457@main> Reviewed commits have been landed. Closing PR #7187 and removing active labels.