GitLab

Also adjusts cron runtime to 180 minutes. It's been at 240 on the
live instance for a while but was never committed that way.

Refresh cycles are taking less time now, so dropping down to 180.

R=kalman@chromium.org
NOTRY=True
BUG=None

Review URL: https://codereview.chromium.org/977213002

Cr-Commit-Position: refs/heads/master@{#319156}