Add a chromium version to policy template files.

grit/format/policy_templates/writers/ios_plist_writer.py

 #!/usr/bin/env python
 # Copyright (c) 2014 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.
 
 
 import base64
 
 from xml.dom import minidom
 from grit.format.policy_templates.writers import plist_writer
@@ skipping 79 matching lines @@
     for dict in [self._dict, self._encoded_dict]:
       self.AddElement(dict, 'key', {}, policy['name'])
       self._WriteValue(dict, policy['example_value'])
 
   # Overridden.
   # |self._plist| is created in super.Init().
   def BeginTemplate(self):
     self._plist.attributes['version'] = '1.0'
     self._root_dict = self.AddElement(self._plist, 'dict')
     self.AddComment(self._root_dict, CHROME_POLICY_COMMENT)
+    if self._GetChromiumVersionString() is not None:
+      self.AddComment(self._root_dict, ' ' + self.config['build'] + \
+          ' version: ' + self._GetChromiumVersionString() + ' ')
     self._dict = self._AddKeyValuePair(self._root_dict, 'ChromePolicy', 'dict')
 
     self._encoded_plist.attributes['version'] = '1.0'
     self._encoded_dict = self.AddElement(self._encoded_plist, 'dict')
 
   # Overridden.
   def EndTemplate(self):
     # Add the "EncodedChromePolicy" entry.
     encoded = base64.b64encode(self._encoded_doc.toxml())
     self.AddComment(self._root_dict, ENCODED_CHROME_POLICY_COMMENT)
     self._AddStringKeyValuePair(self._root_dict, 'EncodedChromePolicy', encoded)
 
   # Overridden.
   def Init(self):
     super(IOSPlistWriter, self).Init()
     # Create a secondary DOM for the EncodedChromePolicy Plist, which will be
     # serialized and encoded in EndTemplate.
     self._encoded_doc = self.CreatePlistDocument()
     self._encoded_plist = self._encoded_doc.documentElement
 
   # Overridden.
   def GetTemplateText(self):
     return self.ToPrettyXml(self._doc, encoding='UTF-8')