dns-proxy: add user and group

BUG=b:171157837
TEST=with dep cls

Change-Id: I1edd080aa3db99a71b2b4ee7a8b236d2653b179a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/2578539
Tested-by: Garrick Evans <garrick@chromium.org>
Reviewed-by: Hugo Benichi <hugobenichi@google.com>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Garrick Evans <garrick@chromium.org>
diff --git a/profiles/base/accounts/group/dns-proxy b/profiles/base/accounts/group/dns-proxy
new file mode 100644
index 0000000..3572c67
--- /dev/null
+++ b/profiles/base/accounts/group/dns-proxy
@@ -0,0 +1,3 @@
+group:dns-proxy
+gid:20167
+users:dns-proxy
diff --git a/profiles/base/accounts/user/dns-proxy b/profiles/base/accounts/user/dns-proxy
new file mode 100644
index 0000000..15f108b
--- /dev/null
+++ b/profiles/base/accounts/user/dns-proxy
@@ -0,0 +1,6 @@
+user:dns-proxy
+uid:20167
+gid:20167
+gecos:CrOS DNS proxy daemon
+home:/dev/null
+shell:/bin/false