The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/autotest/+/21561aea873cfc977fc0a884699ab24396462067

commit 21561aea873cfc977fc0a884699ab24396462067
Author: Sean Kao <seankao@google.com>
Date: Wed Sep 05 12:11:50 2018

autotest: create power_Hangout.groups test

Starts a new test series "power_Hangout", which contains
only a control file that runs video_HangoutHardwarePerf
test.

BUG= chromium:880230 
TEST=test_that -b ${BOARD} <DUT-IP> power_Hangout.groups

Change-Id: I095b569647a6dca3e005aef01acfdd42a7376e72
Signed-off-by: Sean Kao <seankao@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1203695
Commit-Ready: Mengqi Guo <mqg@chromium.org>
Tested-by: Mengqi Guo <mqg@chromium.org>
Reviewed-by: Mengqi Guo <mqg@chromium.org>

[modify] https://crrev.com/21561aea873cfc977fc0a884699ab24396462067/client/site_tests/video_HangoutHardwarePerf/video_HangoutHardwarePerf.py
[add] https://crrev.com/21561aea873cfc977fc0a884699ab24396462067/client/site_tests/power_Hangout/control.groups