GitLab

In an email to a Google-internal group a while ago I talked
about the various mechanisms we potentially have for disabling
tests and their advantages and disadvantages. This seems like
something worth preserving, so I'm moving it into a doc checked
into the repo.

Change-Id: If8288eac8704354c92ffe12b9e79c930e0738c72
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2419612
Commit-Queue: Dirk Pranke <dpranke@google.com>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#811004}