GitLab

This is in preparation for launch. Metrics report:
https://docs.google.com/document/d/1QmvnzeFeFOHx4Bk0MwQCJ261sYSqgrrFFUQUQB4ecUI/edit

Bug: 964049
Change-Id: I5c97ca2dd4c5f00a9340c64261e33fd8213d6b6b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2391644Reviewed-by: Stepan Khapugin <stkhapugin@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804363}