GitLab

Updates some commands to run try jobs that have moved to LUCI, and
adds linux_chromium_chromeos_msan_rel_ng.

Change-Id: I9048da9f6dcb897b5125183d3f66b5995e740de8
Reviewed-on: https://chromium-review.googlesource.com/1112347
Commit-Queue: Bob Haarman <inglorion@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569749}