This is a reland of cd469a4ce5315fee62bb77b5e781a18a99da506d
With vpython specified
Original change's description:
> Add support for launching webcam software for use in recipes
>
> * Copy ensure_webcam_is_running.py from recipes repo
> * Turn it into a wrapper that can launch another script
> (fix_python_path is copied from test_env.py as _ForcePythonInterpreter)
> * Support it in mb.py
> * Add it to video_capture_unittests
>
> No-Try: True
> Bug: chromium:755660
> Change-Id: I376724a77e443620724add7818592e9368d02079
> Reviewed-on: https://webrtc-review.googlesource.com/77320
> Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
> Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#23275}
No-Try: True
Bug: chromium:755660
Change-Id: Ibf4fbe3fea4b003a23b12332b3a6078a2db99a8d
Reviewed-on: https://webrtc-review.googlesource.com/77460
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23279}
739b8169ef