GitLab

This is a very basic check that can be used to verify that the current
process is running under any kind of sandbox.

Change-Id: Iaee3f2a97c4dae72714297dcdf23b37ff7c6fdf4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2147677
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Reviewed-by: Alex Gough <ajgo@chromium.org>
Reviewed-by: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#759667}