Use new facilities for base::expected: components/services/

Bug: 1424513
Change-Id: I7907f1d33db06c2a7a7021f8599c68795ebff98b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4754779


Commit-Queue: Peter Kasting <pkasting@chromium.org>
Code-Coverage: Findit <findit-for-me@appspot.gserviceaccount.com>
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1180379}