These were accidentally dropped in https://crrev.com/c/1574674 .
Re-enable so we can gather better perf stats on Windows machines.

Bug: angleproject:3494
Change-Id: I92e9ba7e7783fddde1a47c0ffe056da7750d2c3b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1639063
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>