Add optional mandatory policy setting for template generation

grit/format/policy_templates/writers/plist_writer.py

Index: grit/format/policy_templates/writers/plist_writer.py
diff --git a/grit/format/policy_templates/writers/plist_writer.py b/grit/format/policy_templates/writers/plist_writer.py
index 6ca905b9c5dccd81bd2728e7b11852d72774fbbc..6d929d6542687720a1dd3cde095a7886773600e3 100644
--- a/grit/format/policy_templates/writers/plist_writer.py
+++ b/grit/format/policy_templates/writers/plist_writer.py
@@ -67,7 +67,7 @@ class PListWriter(xml_formatted_writer.XMLFormattedWriter):
     self.AddElement(parent, 'key', {}, key_string)
     self.AddElement(parent, 'string', {}, value_string)
 
-  def _AddTargets(self, parent):
+  def _AddTargets(self, parent, policy):
     '''Adds the following XML snippet to an XML element:
       <key>pfm_targets</key>
       <array>
@@ -78,7 +78,10 @@ class PListWriter(xml_formatted_writer.XMLFormattedWriter):
         parent: The parent XML element where the snippet will be added.
     '''
     array = self._AddKeyValuePair(parent, 'pfm_targets', 'array')
-    self.AddElement(array, 'string', {}, 'user-managed')
+    if self.CanBeRecommended(policy):
+      self.AddElement(array, 'string', {}, 'user')
+    if self.CanBeMandatory(policy):
+      self.AddElement(array, 'string', {}, 'user-managed')
 
   def PreprocessPolicies(self, policy_list):
     return self.FlattenGroupsAndSortPolicies(policy_list)
@@ -97,7 +100,7 @@ class PListWriter(xml_formatted_writer.XMLFormattedWriter):
     # Those files are generated by plist_strings_writer.
     self._AddStringKeyValuePair(dict, 'pfm_description', '')
     self._AddStringKeyValuePair(dict, 'pfm_title', '')
-    self._AddTargets(dict)
+    self._AddTargets(dict, policy)
     self._AddStringKeyValuePair(dict, 'pfm_type',
                                 self.TYPE_TO_INPUT[policy_type])
     if policy_type in ('int-enum', 'string-enum'):