usb_bouncer: Add new user and corresponding group.

USB Bouncer is a tool invoked by udev and upstart to maintain the a list
of trusted USB devices and generate the policy for USBGuard.

BUG=None
TEST=emerge-${BOARD} usb_bouncer

Change-Id: Ifb21106c55f3751cd5910568cb47a1720ce6ad82
Signed-off-by: Allen Webb <allenwebb@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1330304
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/profiles/base/accounts/group/usb_bouncer b/profiles/base/accounts/group/usb_bouncer
new file mode 100644
index 0000000..03b1e78
--- /dev/null
+++ b/profiles/base/accounts/group/usb_bouncer
@@ -0,0 +1,3 @@
+group:usb_bouncer
+gid:20124
+users:usb_bouncer
diff --git a/profiles/base/accounts/user/usb_bouncer b/profiles/base/accounts/user/usb_bouncer
new file mode 100644
index 0000000..34e4b24
--- /dev/null
+++ b/profiles/base/accounts/user/usb_bouncer
@@ -0,0 +1,6 @@
+user:usb_bouncer
+uid:20124
+gid:20124
+gecos:maintains device whitelist for usbguard
+home:/dev/null
+shell:/bin/false