GitLab

BUG=b:172748724
TEST=chromeos_unittests.
TEST=deploy a test-only function in DBusHelper, make sure the signal
arrives with CL:2563522.

Cq-Depend: chromium:2563522
Change-Id: I3fb14ff069cd710a9df496df7a293cc73466cec0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2563430
Commit-Queue: Leo Lai <cylai@google.com>
Reviewed-by: Ryo Hashimoto <hashimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#832327}