Considering that this tab doesn't exist, there's no reason to have a setting/UI for it.
Created attachment 350317 [details] Patch
Comment on attachment 350317 [details] Patch Okay, so this should move into another patch that actually makes use of it. r=me
Comment on attachment 350317 [details] Patch Clearing flags on attachment: 350317 Committed r236338: <https://trac.webkit.org/changeset/236338>
All reviewed patches have been landed. Closing bug.
<rdar://problem/44686847>