Document ARC support for Chrome policies

components/policy/tools/syntax_check_policy_template_json.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 '''
 Checks a policy_templates.json file for conformity to its syntax specification.
 '''
 
 import json
@@ skipping 167 matching lines @@
     if not isinstance(policy, dict):
       self._Error('Each policy must be a dictionary.', 'policy', None, policy)
       return
 
     # There should not be any unknown keys in |policy|.
     for key in policy:
       if key not in ('name', 'type', 'caption', 'desc', 'device_only',
                      'supported_on', 'label', 'policies', 'items',
                      'example_value', 'features', 'deprecated', 'future',
                      'id', 'schema', 'max_size', 'tags',
-                     'default_for_enterprise_users'):
+                     'default_for_enterprise_users', 'arc_support'):
         self.warning_count += 1
         print ('In policy %s: Warning: Unknown key: %s' %
                (policy.get('name'), key))
 
     # Each policy must have a name.
     self._CheckContains(policy, 'name', str, regexp_check=NO_WHITESPACE)
 
     # Each policy must have a type.
     policy_types = ('group', 'main', 'string', 'int', 'list', 'int-enum',
                     'string-enum', 'string-enum-list', 'dict', 'external')
@@ skipping 11 matching lines @@
 
     # If 'label' is present, it must be a string.
     self._CheckContains(policy, 'label', str, True)
 
     # If 'deprecated' is present, it must be a bool.
     self._CheckContains(policy, 'deprecated', bool, True)
 
     # If 'future' is present, it must be a bool.
     self._CheckContains(policy, 'future', bool, True)
 
+    # If 'arc_support' is present, it must be a string.
+    self._CheckContains(policy, 'arc_support', str, True)
+
     if policy_type == 'group':
       # Groups must not be nested.
       if is_in_group:
         self._Error('Policy groups must not be nested.', 'policy', policy)
 
       # Each policy group must have a list of policies.
       policies = self._CheckContains(policy, 'policies', list)
 
       # Check sub-policies.
       if policies is not None:
@@ skipping 279 matching lines @@
     if filename is None:
       if len(args) != 2:
         parser.print_help()
         sys.exit(1)
       filename = args[1]
     return self.Main(filename, options)
 
 
 if __name__ == '__main__':
   sys.exit(PolicyTemplateChecker().Run(sys.argv))