Also adds a test that prints the gathered information for manual
checking and to help know what the system is when looking at the logs.

BUG=angleproject:1874

Change-Id: Icb0cc390c9808fd8db0f966d667b94dde4b94e62
Reviewed-on: https://chromium-review.googlesource.com/443845
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>