Add telemetry with backtrace for the distributed notification service on macOS.
<rdar://problem/70341045>
Created attachment 411451 [details] Patch
Comment on attachment 411451 [details] Patch r=me
Comment on attachment 411451 [details] Patch Thanks for reviewing!
Committed r268563: <https://trac.webkit.org/changeset/268563> All reviewed patches have been landed. Closing bug and clearing flags on attachment 411451 [details].