Use per-UIProcess default cookie storage for Mac Catalyst apps, similarly to what we do for regular macOS apps.
<rdar://problem/59047014>
Created attachment 389546 [details] Patch
Comment on attachment 389546 [details] Patch r=me
Comment on attachment 389546 [details] Patch Clearing flags on attachment: 389546 Committed r255610: <https://trac.webkit.org/changeset/255610>
All reviewed patches have been landed. Closing bug.