GitLab

ConciergeHelperService starts Concierge, and provides methods
for throttling VMs through Concierge.

Test: Run unittests
Bug: 997397
Change-Id: I76f6aba67d0f8f702789ff406a803c7c52db8bc2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1809806Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Commit-Queue: Willie Koomson <wvk@google.com>
Cr-Commit-Position: refs/heads/master@{#700456}