This takes advantage of powershell on windows for a cleanish duplicate of the
posix version.

R=dnj@chromium.org, vadimsh@chromium.org
BUG=663843

Change-Id: Ib23a044ff912e3239b58848a26143eb6575826d5
Reviewed-on: https://chromium-review.googlesource.com/414228
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>