cros: Added policies for screen unlock.

components/policy/resources/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 119 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: 349
+#   For your editing convenience: highest ID currently used: 351
 #
 # 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 8871 matching lines @@
       'features': {
         'dynamic_refresh': False,
         'per_profile': False,
       },
       'example_value': False,
       'id': 349,
       'caption': '''Enables users to set easy to guess pins for the lock screen pin.''',
       'tags': [],
       'desc': '''If this is set to true users cannot set easy to guess pins for the lock screen pin. Such pins include pins whose digits are all the same number, or are increasing. ''',
     },
+    {
+      'name': 'ScreenUnlockWhitelist',
+      'type': 'list',
+      'schema': {
+        'type': 'array',
+        'items': { 'type': 'string' },
+      },
+      'supported_on': ['chrome_os:55-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': ['password'],

[jdufault, 2016/10/04 23:26:21]

Is 'password' a valid entry here? Should these policies be named

 QuickUnlockModeWhitelist = ['PIN', 'PATTERN', ...]
 QuickUnlockTimeout = 'SixHours'
 QuickUnlockAttempts = 3

[sammiequon, 2016/10/18 22:47:49]

Yeah password was on the doc. Done the renaming.

+      'id': 350,
+      'caption': '''Enable methods for unlocking the lock screen.''',
+      'tags': [],
+      'desc': ''' This policy sets which methods can be used to unlock the lock screen. All means all avaliable methods can be used, otherwise only the specified chosen methods may be used. ''',
+    },
+    {
+      'name': 'ScreenUnlockPasswordConfirmationFrequency',
+      'type': 'int-enum',
+      'schema': {
+        'type': 'integer',
+        'enum': [ 0, 1, 2, 3 ],
+      },
+      'items': [
+        {
+          'name': 'SixHours',
+          'value': 0,
+          'caption': '''Enter password every six hours to continue using quick unlock.''',
+        },
+        {
+          'name': 'TweleveHours',
+          'value': 1,
+          'caption': '''Enter password every twelve hours to continue using quick unlock.''',
+        },
+        {
+          'name': 'Day',
+          'value': 2,
+          'caption': '''Enter password every day to continue using quick unlock.''',
+        },
+        {
+          'name': 'Week',
+          'value': 3,
+          'caption': '''Enter password every week to continue using quick unlock.''',
+        },
+      ],
+      'supported_on': ['chrome_os:55-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': 2,
+      'id': 351,
+      'caption': '''Sets how often user has to enter password to use quick unlock.''',
+      'tags': [],
+      'desc': ''' Users have to enter the password into the lock screen every once in a while to continue using quick unlock. This policy sents the interval at which the lock screen will request the users password. ''',
+    },
   ],
   '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': {
       'desc': '''A text indicating in Mac OS X Workgroup Manager, that currently the preferences of Chromium are being edited''',
       'text': '''<ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> preferences'''
@@ skipping 113 matching lines @@
       '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)',
     },
     'doc_complex_policies_on_windows': {
       'desc': '''Text pointing the user to a help article for complex policies on Windows''',
       'text': '''encoded as a JSON string, for details see <ph name="COMPLEX_POLICIES_URL">https://www.chromium.org/administrators/complex-policies-on-windows<ex>https://www.chromium.org/administrators/complex-policies-on-windows</ex></ph>''',
     },
   },
   'placeholders': [],
 }