Added policy for disabling locally managed users.

chrome/app/policy/policy_templates.json

Index: chrome/app/policy/policy_templates.json
diff --git a/chrome/app/policy/policy_templates.json b/chrome/app/policy/policy_templates.json
index 7fca71bb7cae78f36f65ec166671a9596cd63a4b..52680ca8ee898a0f1a81c00a7cef669e38fcac51 100644
--- a/chrome/app/policy/policy_templates.json
+++ b/chrome/app/policy/policy_templates.json
@@ -112,7 +112,7 @@
 #   persistent IDs for all fields (but not for groups!) are needed. These are
 #   specified by the 'id' keys of each policy. NEVER CHANGE EXISTING IDs,
 #   because doing so would break the deployed wire format!
-#   For your editing convenience: highest ID currently used: 218
+#   For your editing convenience: highest ID currently used: 219
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -4982,6 +4982,24 @@
 
           This policy is for internal use by Chrome itself.''',
         },
+        {
+          'name': 'SupervisedUsersEnabled',
+          'type': 'main',
+          'schema': { 'type': 'boolean' },
+          'supported_on': ['chrome_os:29-'],
+          'device_only': True,
+          'features': {
+            'dynamic_refresh': False,
+          },
+          'example_value': True,
+          'id': 219,
+          'caption': '''Enable supervised users.''',
+          'desc': '''If set to true, it is possible to create and log in as a supervised user.
+
+          If set to false or not configured, supervised users creation and login will be disabled. All existing supervised users will be hidden.
+
+          NOTE: The default behavior for consumer and enterprise devices differs: on consumer devices supervised users are enabled by default, but on enterprice devices they aren't.'''
+        },
       ],
     },
   ],