Update BaseTestServer to use new host resolution API

Bug: 922699
Change-Id: I9b253c40d90823bc3b9bdc99e5a3f812efe6f56e
Reviewed-on: https://chromium-review.googlesource.com/c/1474440
Commit-Queue: Eric Orth <ericorth@chromium.org>
Auto-Submit: Eric Orth <ericorth@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633361}
1 file changed