Test specs now will be updated when the Chromium build files change.
It will be automatically included as part of the Chromium->ANGLE roll.

Bug: angleproject:5114
Change-Id: If99c2a20033d417a5999295f425a3bb203f5da3a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2860962
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>