Include chromium version number in policy templates

grit/format/policy_templates/writers/ios_plist_writer_unittest.py

Index: grit/format/policy_templates/writers/ios_plist_writer_unittest.py
===================================================================
--- grit/format/policy_templates/writers/ios_plist_writer_unittest.py	(revision 177)
+++ grit/format/policy_templates/writers/ios_plist_writer_unittest.py	(working copy)
@@ -54,12 +54,18 @@
                                         templates,
                                         expected_output,
                                         parse,
-                                        decode_and_parse):
+                                        decode_and_parse,
+                                        defines=None):
+
+    _defines = { '_chromium': '1',
+                 'mac_bundle_id': 'com.example.Test',
+                 'version': '39.0.0.0' }
+
     # Generate the grit output for |templates|.
     output = self.GetOutput(
         self.PrepareTest(templates),
         'fr',
-        { '_chromium': '1', 'mac_bundle_id': 'com.example.Test' },
+        _defines,
         'ios_plist',
         'en')
 
@@ -80,12 +86,12 @@
     decoded_chrome_policy = decode_and_parse(encoded_chrome_policy)
     self.assertEquals(decoded_chrome_policy, expected_output)
 
-  def _VerifyGeneratedOutput(self, templates, expected):
+  def _VerifyGeneratedOutput(self, templates, expected, defines=None):
     # plistlib is available on all Python platforms.
     parse = functools.partial(self._ParseWithPython, False)
     decode_and_parse = functools.partial(self._ParseWithPython, True)
     self._VerifyGeneratedOutputWithParsers(
-        templates, expected, parse, decode_and_parse)
+        templates, expected, parse, decode_and_parse, defines)
 
     # The Cocoa bindings are available on Mac OS X only.
     if Cocoa:
@@ -92,7 +98,7 @@
       parse = functools.partial(self._ParseWithCocoa, False)
       decode_and_parse = functools.partial(self._ParseWithCocoa, True)
       self._VerifyGeneratedOutputWithParsers(
-          templates, expected, parse, decode_and_parse)
+          templates, expected, parse, decode_and_parse, defines)
 
   def _MakeTemplate(self, name, type, example, extra=''):
     return '''
@@ -124,6 +130,17 @@
     expected = {}
     self._VerifyGeneratedOutput(templates, expected)
 
+  def testEmptyVersion(self):
+    templates = '''
+    {
+      'policy_definitions': [],
+      'placeholders': [],
+      'messages': {},
+    }
+    '''
+    expected = {}
+    self._VerifyGeneratedOutput(templates, expected)
+
   def testBoolean(self):
     templates = self._MakeTemplate('BooleanPolicy', 'main', 'True')
     expected = {