GitLab

This makes it so that all the information needed to diagnose
whitelist issues is available in one place.

BUG=847544

Cq-Include-Trybots: luci.chromium.try:closure_compilation
Change-Id: Idef99fa83d84ff1d7258c65f9ca4f481267758f8
Reviewed-on: https://chromium-review.googlesource.com/1142515
Commit-Queue: Chris Hamilton <chrisha@chromium.org>
Reviewed-by: Patrick Monette <pmonette@chromium.org>
Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576478}