smbprovider: Change ebuild and add dbus service activation with minijail

Add jailed binary and /usr/share/dbus-1/system-services to ebuild.

BUG=chromium:757625
TEST=builds locally
CQ-DEPEND=CL:783559

Change-Id: I6baa7211a8d4a2b6099b280c5972cde36a8257e9
Reviewed-on: https://chromium-review.googlesource.com/783521
Commit-Ready: Allen Vicencio <allenvic@chromium.org>
Tested-by: Allen Vicencio <allenvic@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
1 file changed