Enable the ManagedBookmarks policy on all platforms.

components/policy/tools/generate_policy_source.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.
 
 '''python %prog [options] platform chromium_os_flag template
 
 platform specifies which platform source is being generated for
   and can be one of (win, mac, linux)
 chromium_os_flag should be 1 if this is a Chromium OS build
@@ skipping 402 matching lines @@
         return self.GetSimpleType(schema['type'])
       elif 'enum' in schema:
         return self.GetEnumType(schema, name)
       elif 'pattern' in schema:
         return self.GetPatternType(schema, name)
       else:
         return self.GetRangedType(schema, name)
 
     if schema['type'] == 'array':
       # Special case for lists of strings, which is a common policy type.
-      if schema['items']['type'] == 'string':
+      # The 'type' may be missing if the schema has a '$ref' attribute.
+      if schema['items'].get('type', '') == 'string':
         return self.GetStringList()
       return self.AppendSchema('TYPE_LIST',
           self.GenerateAndCollectID(schema['items'], 'items of ' + name))
     elif schema['type'] == 'object':
       # Reserve an index first, so that dictionaries come before their
       # properties. This makes sure that the root node is the first in the
       # SchemaNodes array.
       index = self.AppendSchema('TYPE_DICTIONARY', -1)
 
       if 'additionalProperties' in schema:
@@ skipping 483 matching lines @@
 def _WriteCloudPolicyDecoder(policies, os, f):
   f.write(CPP_HEAD)
   for policy in policies:
     if policy.is_supported and not policy.is_device_only:
       _WritePolicyCode(f, policy)
   f.write(CPP_FOOT)
 
 
 if __name__ == '__main__':
   sys.exit(main())