Various bits of tidy up related to grouping preference value checks and changing the location of ignore override.
<rdar://88897735>
Created attachment 454870 [details] Patch
Comment on attachment 454870 [details] Patch r=me
Committed r291511 (248617@main): <https://commits.webkit.org/248617@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 454870 [details].