GitLab

Uses drawing commands rather than raster assets.

This CL tries to retain/reuse the same positioning logic that already exists, but I didn't attempt to correct any bugs in positioning that might be introduced. That's up next.

BUG=635170

Review-Url: https://codereview.chromium.org/2343913003
Cr-Commit-Position: refs/heads/master@{#419203}