StorageArea should be able to send its IPC directly from the background thread, instead of hopping to the main thread to do so.
Created attachment 430470 [details] Patch
Created attachment 430471 [details] Patch
Committed r278409 (238434@main): <https://commits.webkit.org/238434@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 430471 [details].
<rdar://problem/78822422>