GitLab

- Show number inside a circle icon
- Show plus icon when count is larger than 9

Bug: 845804
Change-Id: Ieed91875573dde0e03c3da50d0787e87142bdb8b
Reviewed-on: https://chromium-review.googlesource.com/1088529
Commit-Queue: Tatsuhisa Yamaguchi <yamaguchi@chromium.org>
Reviewed-by: Evan Stade <estade@chromium.org>
Reviewed-by: Tetsui Ohkubo <tetsui@chromium.org>
Reviewed-by: Yoshiki Iguchi <yoshiki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572458}