Convert usesMockScrollAnimator from a DeprecatedGlobalSettings to a WebPreference
Created attachment 438395 [details] Patch
Created attachment 438417 [details] Patch
Created attachment 438496 [details] Patch
Committed r282686 (241825@main): <https://commits.webkit.org/241825@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 438496 [details].
<rdar://problem/83252796>