Support VR perf tests on Windows

Adds support for running the existing VR Telemetry benchmarks on
Windows. Currently only supports the Oculus runtime, which requires
special hardware and software to be installed, but additional runtime
support will be added in follow-up CLs.

Bug: 939178
Change-Id: I71056b1da9aa07a374602757f5ddfafcfc972316
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1521797
Reviewed-by: Caleb Rouleau <crouleau@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641697}
13 files changed