GitLab

Also polish shelf item background color.

Bug: 839604
Change-Id: I85f3762ff2a8073a71b72e1478a2a36898f6142e
Reviewed-on: https://chromium-review.googlesource.com/1180270
Commit-Queue: Jacob Dufault <jdufault@chromium.org>
Reviewed-by: Wenzhao (Colin) Zang <wzang@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584796}