autotest: Add a dummy server test that always passes

This is generally useful to test certain classes of changes.

TEST=This is a passing test.
BUG=chromium:281542

Change-Id: I8d700c1cac5521ba6555400a867825c60435eb02
Reviewed-on: https://chromium-review.googlesource.com/167572
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Tested-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
2 files changed