GitLab

- Fix experiment groups.

Change-Id: If572af8fe4f60699c8013f75af58328be5c8013f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2576952Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Auto-Submit: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834974}