Babysitter slaves for newly-transitioned bots
Babysitter slaves for newly-transitioned bots

BUG=skia:5185

Review-Url: https://codereview.chromium.org/1980363002

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