Add support for Chrome policy type that references external data

grit/format/policy_templates/writers/doc_writer.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.
 
 
 from xml.dom import minidom
 from grit import lazy_re
 from grit.format.policy_templates.writers import xml_formatted_writer
 
@@ skipping 446 matching lines @@
       parent: A DOM element for which the list will be added.
       policy: The data structure of the policy.
     '''
 
     dl = self.AddElement(parent, 'dl')
     data_type = self._TYPE_MAP[policy['type']]
     if (self.IsPolicySupportedOnPlatform(policy, 'win') and
         self._REG_TYPE_MAP.get(policy['type'], None)):
       data_type += ' (%s)' % self._REG_TYPE_MAP[policy['type']]
     self._AddPolicyAttribute(dl, 'data_type', data_type)
-    if self.IsPolicySupportedOnPlatform(policy, 'win'):
-      self._AddPolicyAttribute(
-          dl,
-          'win_reg_loc',
-          self.config['win_reg_mandatory_key_name'] + '\\' + policy['name'],
-          ['.monospace'])
-    if (self.IsPolicySupportedOnPlatform(policy, 'linux') or
-        self.IsPolicySupportedOnPlatform(policy, 'mac')):
-      self._AddPolicyAttribute(
-          dl,
-          'mac_linux_pref_name',
-          policy['name'],
-          ['.monospace'])
+    if policy['type'] != 'external':
+      # All types except 'external' can be set through platform policy.
+      if self.IsPolicySupportedOnPlatform(policy, 'win'):
+        self._AddPolicyAttribute(
+            dl,
+            'win_reg_loc',
+            self.config['win_reg_mandatory_key_name'] + '\\' + policy['name'],
+            ['.monospace'])
+      if (self.IsPolicySupportedOnPlatform(policy, 'linux') or
+          self.IsPolicySupportedOnPlatform(policy, 'mac')):
+        self._AddPolicyAttribute(
+            dl,
+            'mac_linux_pref_name',
+            policy['name'],
+            ['.monospace'])
     dd = self._AddPolicyAttribute(dl, 'supported_on')
     self._AddSupportedOnList(dd, policy['supported_on'])
     dd = self._AddPolicyAttribute(dl, 'supported_features')
     self._AddFeatures(dd, policy)
     dd = self._AddPolicyAttribute(dl, 'description')
     self._AddDescription(dd, policy)
     if (self.IsPolicySupportedOnPlatform(policy, 'win') or
         self.IsPolicySupportedOnPlatform(policy, 'linux') or
         self.IsPolicySupportedOnPlatform(policy, 'mac')):
       # Don't add an example for ChromeOS-only policies.
-      dd = self._AddPolicyAttribute(dl, 'example_value')
-      self._AddExample(dd, policy)
+      if policy['type'] != 'external':
+        # All types except 'external' can be set through platform policy.
+        dd = self._AddPolicyAttribute(dl, 'example_value')
+        self._AddExample(dd, policy)
 
   def _AddPolicyNote(self, parent, policy):
     '''If a policy has an additional web page assigned with it, then add
     a link for that page.
 
     Args:
       policy: The data structure of the policy.
     '''
     if 'problem_href' not in policy:
       return
@@ skipping 135 matching lines @@
         self._FEATURE_MAP[message[12:]] = self.messages[message]['text']
     # Human-readable names of types.
     self._TYPE_MAP = {
       'string': 'String',
       'int': 'Integer',
       'main': 'Boolean',
       'int-enum': 'Integer',
       'string-enum': 'String',
       'list': 'List of strings',
       'dict': 'Dictionary',
+      'external': 'External data reference',
     }
     self._REG_TYPE_MAP = {
       'string': 'REG_SZ',
       'int': 'REG_DWORD',
       'main': 'REG_DWORD',
       'int-enum': 'REG_DWORD',
       'string-enum': 'REG_SZ',
       'dict': 'REG_SZ, encoded as a JSON string',
     }
     # The CSS style-sheet used for the document. It will be used in Google
@@ skipping 18 matching lines @@
     }
 
     # A simple regexp to search for URLs. It is enough for now.
     self._url_matcher = lazy_re.compile('(http://[^\\s]*[^\\s\\.])')
 
   def GetTemplateText(self):
     # Return the text representation of the main <div> tag.
     return self._main_div.toxml()
     # To get a complete HTML file, use the following.
     # return self._doc.toxml()