GitLab

The idl file should be removed, and a couple of comments got missed.

TBR=dcheng@chromium.org

Bug: 650275
Change-Id: Ic36c71da5234bd9f0808f005c967147a11e45e27
Reviewed-on: https://chromium-review.googlesource.com/889043Reviewed-by: Aaron Leventhal <aleventhal@chromium.org>
Commit-Queue: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532590}