Will fix presubmit checks on Windows.

Bug: angleproject:4586
Change-Id: I36cec3e850c88a015f33d8a0bb7cc8f8c26402d0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2165628
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>