Use commit-bot@chromium.org instead of actual CQ service account name
Use commit-bot@chromium.org instead of actual CQ service account name

R=jrobbins@chromium.org, jrobbins@google.com, phajdan.jr@chromium.org
CC=akuegel@chromium.org
BUG=489483

Review URL: https://codereview.chromium.org/1146983002

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra