Support Python 3 in //remoting/host/win/get_clsids.py

The changes are to allow build files to be generated using Python 3 on Windows.

The scripts still work with Python 2.
There are no intended behaviour changes.

Bug: 941669
Change-Id: If745d7af91c6f816bea8ceb0ee7ba5727d2e6ddd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1521349
Commit-Queue: Raul Tambre <raul@tambre.ee>
Reviewed-by: Yuwei Huang <yuweih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#640632}
1 file changed