GitLab

The one caller was removed in
https://chromium-review.googlesource.com/c/chromium/src/+/1064798,
but this class was accidentally not removed.

Bug: 791702
Change-Id: I311a12aed9bddfc114bcd66856310ac8fc415673
Reviewed-on: https://chromium-review.googlesource.com/1124762Reviewed-by: Marijn Kruisselbrink <mek@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572460}