GitLab

- current UI https://imgur.com/97DpSem
- UI spec https://docs.google.com/presentation/d/1Mfk5ZMEmeHwSbadUbyRU0Si5k6XDIvw-j4u7TUaCIGY/edit#slide=id.g6db8b414e1_4_32

Bug: 1093185
Change-Id: I751590c8a6868fe2bfb6ad8f367ec886729e3694
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2389231
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Reviewed-by: Azeem Arshad <azeemarshad@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804497}