This file is needed by the bots to run as an isolated script.

Bug: angleproject:3162
Change-Id: I1bb87b3622613334b379896a3c124a6007676346
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2275729Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>