Add an Engineering setting, not Experimental since the feature isn't yet usable for STP users. <rdar://problem/87888387>
<rdar://problem/88443529>
Created attachment 450792 [details] Patch
Created attachment 450794 [details] [Image] With patch applied
Comment on attachment 450792 [details] Patch r=me, but please open another bugzilla bug blocked on this one to remove the setting particularly since we typically wouldn't add a new setting that isn't being used by the patch it was added in. Please also mark this as a blocker for both your patch and Razvan's patch that will rely on this setting in the coming days.
Committed r289064 (246771@main): <https://commits.webkit.org/246771@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 450792 [details].