Add a Darwin framework notification when subscription drops.#22351

Merged

bzbarsky-apple merged 2 commits intoproject-chip:masterfrom bzbarsky-apple:darwin-notify-resubscribe

Sep 3, 2022

+141-99

Commits on Sep 1, 2022

Add a Darwin framework notification when subscription drops.
bzbarsky-apple
committed

Commits on Sep 2, 2022

Address review comment.
bzbarsky-apple
committed