GitLab

This should cover:
- Infobar
- Detached bookmark bar
- Avatar menu text (but not icons yet)
- Default bookmark icon
- Toolbar buttons
- Secondary UI controls

Bug: 850098
Change-Id: I6583f06e9470e320826f766e18d9c6e9141b75fa
Reviewed-on: https://chromium-review.googlesource.com/c/1337793
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609010}