Adding ippusb user

BUG=chromium:768606
TEST=Manually tested creation of user using emerge

Change-Id: I93e45122ad241e61b52fe648aa5c772da1a4550c
Reviewed-on: https://chromium-review.googlesource.com/816359
Commit-Ready: David Valleau <valleau@chromium.org>
Tested-by: David Valleau <valleau@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
diff --git a/profiles/base/accounts/group/ippusb b/profiles/base/accounts/group/ippusb
index a91367b..b453b4a 100644
--- a/profiles/base/accounts/group/ippusb
+++ b/profiles/base/accounts/group/ippusb
@@ -1,3 +1,3 @@
 group:ippusb
 gid:20100
-users:lp,lpadmin,cups
+users:ippusb,lp,lpadmin,cups
diff --git a/profiles/base/accounts/user/ippusb b/profiles/base/accounts/user/ippusb
new file mode 100644
index 0000000..6f73ad5
--- /dev/null
+++ b/profiles/base/accounts/user/ippusb
@@ -0,0 +1,6 @@
+user:ippusb
+uid:20100
+gid:20100
+gecos: user for printing using ipp over usb
+home:/dev/null
+shell:/bin/false