GitLab

Add unit tests before tinkering around.

Bug: 965580
Change-Id: Ia17826cd4368cdfa70695d331369318e0497372e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1625745Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662865}