Move factory_setup to factory repo. BUG=None CQ-DEPEND=CL:38634,CL:38635,CL:38636,CL:38638,CL:38639,CL:38641 TEST=buildbot Change-Id: Ic0e429df4db4a35fd597aa0d5945660ef8c996a2 (cherry picked from commit d8cbbddde48dbc9735480d8efc472d657923fd33) Reviewed-on: https://gerrit.chromium.org/gerrit/38636 Commit-Ready: Jon Salz <jsalz@chromium.org> Reviewed-by: Jon Salz <jsalz@chromium.org> Tested-by: Jon Salz <jsalz@chromium.org>