GitLab

See bug for the iterations with UX, including screenshots.

I tried to get rid of as many magic numbers as I could, but a few
remain because they're just tweaked until things look right visually.

Bug: 1005333
Change-Id: I479668d5a2c8a5e018b17be23496092792a24ac3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1898615Reviewed-by: Collin Baker <collinbaker@chromium.org>
Reviewed-by: Taylor Bergquist <tbergquist@chromium.org>
Reviewed-by: Charlene Yan <cyan@chromium.org>
Commit-Queue: Connie Wan <connily@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713093}