Make WebKit's UserInterfaceIdiom operate in terms of the exceptions, not the rule
Created attachment 433356 [details] Patch
Created attachment 433363 [details] Patch
Committed r279863 (239616@main): <https://commits.webkit.org/239616@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 433363 [details].
<rdar://problem/80494541>