buffet: Allow setting command results.

Next step in command results support: now there is
CommandInstance::SetResults method which allows results
modifications.

BUG=chromium:435607
TEST=cros_workon_make --test buffet

Change-Id: I1f5da9c3613a2996cea3f65f07945cc64bfeda2e
Reviewed-on: https://chromium-review.googlesource.com/231337
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Anton Muhin <antonm@chromium.org>
Commit-Queue: Anton Muhin <antonm@chromium.org>
17 files changed
tree: 225ab6c36af2ccb1088d7234ed65a472488d14a0
  1. buffet/