Make NetworkRTCProvider receive IPC messages from a background thread
Created attachment 402724 [details] Patch
Created attachment 403180 [details] Patch
Created attachment 403181 [details] Patch
Created attachment 403187 [details] Patch
Comment on attachment 403187 [details] Patch r=me
Committed r263789: <https://trac.webkit.org/changeset/263789> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403187 [details].
<rdar://problem/64974884>