Add PIN printing policies: allowed and default modes.

Bug: 848942
Change-Id: I45f8d1b8a51bfa6d5630ea2077b4950102f7f98d
Reviewed-on: https://chromium-review.googlesource.com/c/1477077
Commit-Queue: Nikita Podguzov <nikitapodguzov@google.com>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Reviewed-by: Vladislav Kuzkokov <vkuzkokov@chromium.org>
Reviewed-by: Sergey Poromov <poromov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634170}
11 files changed