buffet: Start buffet under buffet user.

BUG=chromium:390697
TEST=manual

Change-Id: Ib2e96d361f47da01720cc68522bc1e0209a5d18f
Reviewed-on: https://chromium-review.googlesource.com/230850
Tested-by: Anton Muhin <antonm@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Anton Muhin <antonm@chromium.org>
2 files changed
tree: 4c68b2b26adc29770076026af5bc00686f0868ac
  1. buffet/