[dwa_service] dispatch existing key when an observer is added
This commit adds the capability for dispatching the existing public on
addition of an observer so the observer can get the initial state of
the public key.
Bug: b:445106658
Change-Id: If344893478449743a0f595ae83469cf477cee104
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7106139
Reviewed-by: Jay Zhou <zhouzj@google.com>
Reviewed-by: Luc Nguyen <lucnguyen@google.com>
Reviewed-by: Matt Dembski <dembski@google.com>
Commit-Queue: Chirag Arora <heychirag@google.com>
Cr-Commit-Position: refs/heads/main@{#1539523}
NOKEYCHECK=True
GitOrigin-RevId: 27ae5b1cdf9746980f874a7d8b157f87c52e8ab7
2 files changed
