Fix public ip address of lab
Fix public ip address of lab

BUG=skia:

Review-Url: https://codereview.chromium.org/2099763002

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot