Add webservd user/group to accounts database

Added a user and a group for the web server daemon.

Also added privetd to webservd group since it will need access
to the web sever for its Privet proptocol handling.

BUG=chromium:451082
TEST=FEATURES=test emerge-link libwebserv
CQ-DEPEND=CL:242552

Change-Id: I3076f13291f7e47171ab2e8049f84c3a834bfaf2
Reviewed-on: https://chromium-review.googlesource.com/242551
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Chris Masone <cmasone@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
Trybot-Ready: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/profiles/base/accounts/group/privetd b/profiles/base/accounts/group/privetd
index 8aa2439..8b21a93 100644
--- a/profiles/base/accounts/group/privetd
+++ b/profiles/base/accounts/group/privetd
@@ -1,3 +1,3 @@
 group:privetd
 gid:262
-users:leaderd,privetd
+users:leaderd,privetd,webservd
diff --git a/profiles/base/accounts/group/webservd b/profiles/base/accounts/group/webservd
new file mode 100644
index 0000000..9e93c69
--- /dev/null
+++ b/profiles/base/accounts/group/webservd
@@ -0,0 +1,3 @@
+group:webservd
+gid:266
+users:privetd,webservd
diff --git a/profiles/base/accounts/user/webservd b/profiles/base/accounts/user/webservd
new file mode 100644
index 0000000..c636f93
--- /dev/null
+++ b/profiles/base/accounts/user/webservd
@@ -0,0 +1,6 @@
+user:webservd
+uid:266
+gid:266
+gecos:web server daemon
+home:/dev/null
+shell:/bin/false