This is windows version of
https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1345255

Changed to use call to invoke python because python is bat file.

Bug: 900161
Change-Id: I0332306387614153be7ae6dbde05fb2bc93559b1
Reviewed-on: https://chromium-review.googlesource.com/c/1355641
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Reviewed-by: Fumitoshi Ukai <ukai@chromium.org>