Implement a policy to autologin a public account.

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: 171
+#   For your editing convenience: highest ID currently used: 173
 #
 # 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 3369 matching lines @@
         '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': 'DeviceLocalAccountAutoLogin',
+      'type': 'group',
+      'caption': '''Automatically login to a public account.''',
+      'desc': '''Specify a public account to be automatically logged in after a period of time.  The public account must already be configured (see the "DeviceLocalAccounts" policy and the timeout is in milliseconds.''',

[bartfab (slow), 2013/02/08 18:38:42]

The grouping is not really necessary for two policies. Also, any documentation
of the policies should go with the policies directly, not into a group
description.

[dconnelly, 2013/02/08 19:20:42]

Done.

+      'policies': [
+        {
+          'name': 'DeviceLocalAccountAutoLoginUsername',
+          'type': 'string',
+          'schema': { 'type': 'string' },
+          'caption': '''Public account for auto-login''',

[bartfab (slow), 2013/02/08 18:38:42]

We have just renamed public accounts to public sessions... :).

[dconnelly, 2013/02/08 19:20:42]

Done.

+          'desc': '''A public account that should be automatically logged in after a period of time has elapsed at the login screen.''',
+          'supported_on': ['chrome_os:0.26-'],

[bartfab (slow), 2013/02/08 18:38:42]

Nit: s/0.26/26/

[dconnelly, 2013/02/08 19:20:42]

Done.

+          'device_only': True,
+          'features': {
+            'dynamic_refresh': True,
+          },
+          'example_value': "zoidberg@localhost",
+          'id': 172,
+        },
+        {
+          'name': 'DeviceLocalAccountAutoLoginTimerMillis',
+          'type': 'int',
+          'schema': { 'type': 'integer' },
+          'caption': '''Public account auto-login timer''',

[bartfab (slow), 2013/02/08 18:38:42]

The order in which you arranged these items does not match the other policies.
Could you reorder so it's name, type, schema, supported_on, ...?

[dconnelly, 2013/02/08 19:20:42]

Done.

+          'desc': '''The amount of time (in milliseconds) that should elapse before automatically logging in a public account (see the "DeviceLocalAccountAutoLoginUsername" policy).  If this policy isn't specified, 0 milliseconds will be used as the timeout.''',
+          'supported_on': ['chrome_os:0.26-'],

[bartfab (slow), 2013/02/08 18:38:42]

nit: s/0.26/26/

[dconnelly, 2013/02/08 19:20:42]

Done.

+          'device_only': True,
+          'features': {
+            'dynamic_refresh': True,
+          },
+          'example_value': 300,
+          'id': 173,
+        }
+      ]
+    },
+    {
       'name': 'BackgroundModeEnabled',
       'type': 'main',
       'schema': { 'type': 'boolean' },
       'supported_on': ['chrome.win:19-', 'chrome.linux:19-'],
       'features': {
         'can_be_recommended': True,
         'dynamic_refresh': True,
         'per_profile': False,
       },
       'example_value': True,
@@ skipping 456 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': [],
 }