Add chronos to arc-camera group.

This is needed for Chrome browser process to access the unix domain
socket /var/run/camera/camera3.sock to talk to the camera HAL.

BUG=b:36233258, b:32690003
CQ-DEPEND=CL:546796
TEST=Make sure Chrome starts and Mojo connection to the camera HAL
     is started successfully.

Change-Id: Id7143465a7e7849fa36234e7b6c6045bdc2c83e8
Reviewed-on: https://chromium-review.googlesource.com/505827
Reviewed-by: Ricky Liang <jcliang@chromium.org>
Tested-by: Ricky Liang <jcliang@chromium.org>
Commit-Queue: Ricky Liang <jcliang@chromium.org>
1 file changed
tree: 1ef0ea7f4460705c664238ac0df04b925ee9b462
  1. PRESUBMIT.cfg
  2. eclass/
  3. metadata/
  4. profiles/