Added policy for disabling locally managed users.

chrome/app/policy/policy_templates.json

 {
 # policy_templates.json - Metafile for policy templates
 #
 # The content of this file is evaluated as a Python expression.
 #
 # This file is used as input to generate the following policy templates:
 # ADM, ADMX+ADML, MCX/plist and html documentation.
 #
 # Policy templates are user interface definitions or documents about the
 # policies that can be used to configure Chrome. Each policy is a name-value
@@ skipping 94 matching lines @@
 #   templates and documentation. The policy definition list that Chrome sees
 #   will include policies marked with 'future'. If a WIP policy isn't meant to
 #   be seen by the policy providers either, the 'supported_on' key should be set
 #   to an empty list.
 #
 # IDs:
 #   Since a Protocol Buffer definition is generated from this file, unique and
 #   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: 214
+#   For your editing convenience: highest ID currently used: 215
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
 #     $1 -> Google Chrome / Chromium
 #     $2 -> Google Chrome OS / Chromium OS
 #     $3 -> Google Chrome Frame / Chromium Frame
 #     $6 is reserved for doc_writer
 #
 # Device Policy:
 #   An additional flag device_only (optional, defaults to False) indicates
@@ skipping 4748 matching lines @@
           'example_value': {
             'https://www.example.com': True,
             'http://moose.org': False
           },
           'id': 206,
           'caption': '''Managed user manual exception URLs''',
           'desc': '''A dictionary mapping URLs to a boolean flag specifying whether access to the host should be allowed (true) or blocked (false).
 
           This policy is for internal use by Chrome itself.''',
         },
+        {
+          'name': 'LocallyManagedUsersEnabled',
+          'type': 'main',
+          'schema': { 'type': 'boolean' },
+          'supported_on': ['chrome:29-', 'chrome_os:29-'],

[Mattias Nissler (ping if slow), 2013/06/21 14:41:16]

One more thing: I don't see any code for chrome desktop in this CL. Please
remove the chrome:29- part.

[dzhioev (left Google), 2013/06/21 16:48:17]

Done.

+          'features': {
+            'dynamic_refresh': False,
+            'per_profile': False
+          },
+          'example_value': True,
+          'id': 215,
+          'caption': '''Enable locally managed users.''',
+          'desc': '''If this policy set to false or not configured, <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> and <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> will disable locally managed users creation and login.'''

[Mattias Nissler (ping if slow), 2013/06/21 14:25:16]

Please also spell out behavior if set to true. Additionally, it's worth stating
here that the default handling is odd (i.e. LMU are allowed on consumer devices
but not on enterprise devices).

[dzhioev (left Google), 2013/06/21 16:48:17]

Done.

+        },
       ],
     },
   ],
   'messages': {
     # Messages that are not associated to any policies.
     'win_supported_winxpsp2': {
       'desc': '''A label specifying the oldest possible compatible version of Windows. This text will appear right next to a label containing the text 'Supported on:'.''',
       'text': '''Microsoft Windows XP SP2 or later'''
     },
     'mac_chrome_preferences': {
@@ skipping 86 matching lines @@
       'desc': '''Text appended in parentheses to the policy name to indicate that it has been deprecated''',
       'text': 'deprecated',
     },
     'doc_recommended': {
       'desc': '''Text appended in parentheses next to the policies top-level container to indicate that those policies are of the Recommended level''',
       'text': 'Default Settings (users can override)',
     },
   },
   'placeholders': [],
 }