Add device policy definition for local accounts.

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 5bc8bd1c029b14b5bb8371a55794695b541f88e6..3e933ddc713e178671068f817643a3d2d981b162 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: 162
+#   For your editing convenience: highest ID currently used: 163
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -3060,6 +3060,24 @@
       The recognized connection type identifiers are "ethernet", "wifi", "wimax", "bluetooth" and "cellular".''',
     },
     {
+      'name': 'DeviceLocalAccounts',
+      'type': 'list',
+      'schema': {
+        'type': 'array',
+        'items': { 'type': 'string' },
+      },
+      'supported_on': ['chrome_os:0.25-'],
+      'device_only': True,
+      'future': True,
+      'features': {'dynamic_refresh': True},
+      'example_value': [ "demo@example.com" ],
+      'id': 163,
+      'caption': '''Device-local accounts''',
+      'desc': '''Specifies the list of device-local accounts to be shown on the login screen.
+
+      Every list entry specifies an identifier, which is used internally to tell the different device-local accounts apart.''',
+    },
+    {
       'name': 'BackgroundModeEnabled',
       'type': 'main',
       'schema': { 'type': 'boolean' },