commit 62c39d7cb132ba0864852fed6e109a5b231c7ed2
author hscham <hscham@chromium.org> Fri Oct 15 04:45:56 2021
committer Commit Bot <commit-bot@chromium.org> Thu Oct 21 08:02:51 2021
tree c4c98c1a258b996c9e27cb566fd6d798abe38241
parent 91c1b410fa13d88cab5779c0e39a066cf58710db

weave: migrate away from base::ScopedObserver

base:ScopedObserver will be removed at libchrome r890208.
It should be replaced by either base::ScopedObservation or
base::ScopedMultiSourceObservation. Note all usages in libweave belongs
to the former since they only observe one source.

BUG=b:198993705
TEST=FEATURES=test emerge-hatch libweave

Change-Id: Ia35cd0a82dd936c4a0655e49b46b16579093ebf1
Reviewed-on: https://chromium-review.googlesource.com/c/weave/libweave/+/3224843
Tested-by: Grace Cham <hscham@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Commit-Queue: Grace Cham <hscham@chromium.org>