Also has a few other tweaks to test spin-up.

Bug: angleproject:3162
Change-Id: I8753f1afedbcc5c4b5ae257965ce68dc4a02ae06
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2407836
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>