GitLab

This flag skips to the user login screen.

BUG=753870
TEST=manual

Change-Id: I3682b825d8177b8676718f421335f4af1d940937
Reviewed-on: https://chromium-review.googlesource.com/850582
Commit-Queue: Achuith Bhandarkar <achuith@chromium.org>
Reviewed-by: Alexander Alekseev <alemate@chromium.org>
Cr-Commit-Position: refs/heads/master@{#527116}