Add optional mandatory policy setting for template generation

grit/format/policy_templates/writers/doc_writer.py

Index: grit/format/policy_templates/writers/doc_writer.py
===================================================================
--- grit/format/policy_templates/writers/doc_writer.py	(revision 175)
+++ grit/format/policy_templates/writers/doc_writer.py	(working copy)
@@ -180,7 +180,10 @@
     win = self._AddStyledElement(parent, 'dd', ['.monospace', '.pre'])
     win_text = []
     cnt = 1
-    key_name = self.config['win_reg_mandatory_key_name']
+    if self.CanBeRecommended(policy) and not self.CanBeMandatory(policy):
+      key_name = self.config['win_reg_recommended_key_name']
+    else:
+      key_name = self.config['win_reg_mandatory_key_name']
     for item in example_value:
       win_text.append(
           '%s\\%s\\%d = "%s"' %
@@ -287,7 +290,10 @@
     '''
     self.AddElement(parent, 'dt', {}, 'Windows:')
     win = self._AddStyledElement(parent, 'dd', ['.monospace', '.pre'])
-    key_name = self.config['win_reg_mandatory_key_name']
+    if self.CanBeRecommended(policy) and not self.CanBeMandatory(policy):
+      key_name = self.config['win_reg_recommended_key_name']
+    else:
+      key_name = self.config['win_reg_mandatory_key_name']
     example = json.dumps(policy['example_value'])
     self.AddText(win, '%s\\%s = %s' % (key_name, policy['name'], example))
 
@@ -459,10 +465,14 @@
     if policy['type'] != 'external':
       # All types except 'external' can be set through platform policy.
       if self.IsPolicySupportedOnPlatform(policy, 'win'):
+        if self.CanBeRecommended(policy) and not self.CanBeMandatory(policy):
+          key_name = self.config['win_reg_recommended_key_name']
+        else:
+          key_name = self.config['win_reg_mandatory_key_name']
         self._AddPolicyAttribute(
             dl,
             'win_reg_loc',
-            self.config['win_reg_mandatory_key_name'] + '\\' + policy['name'],
+            key_name + '\\' + policy['name'],
             ['.monospace'])
       if (self.IsPolicySupportedOnPlatform(policy, 'linux') or
           self.IsPolicySupportedOnPlatform(policy, 'mac')):