Create response_parameters as part of mojom

mojo/public/bindings/pylib/parse/mojo_translate.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """Translate parse tree to Mojom IR"""
 
 
 import os
 import sys
@@ skipping 63 matching lines @@
                     'kind': self.MapKind(parameter[1]),
                     'ordinal': self.MapOrdinal(parameter[3])})
     return out
 
 
   def MapMethods(self, methods):
     out = []
     if methods:
       for method in methods:
         if method[0] == 'METHOD':
-          out.append({'name': method[1],
-                      'parameters': self.MapParameters(method[2]),
-                      'ordinal': self.MapOrdinal(method[3])})
+          method_dict = {'name': method[1],
+                         'parameters': self.MapParameters(method[2]),
+                         'ordinal': self.MapOrdinal(method[3])}
+          if method[4] != None:
+            method_dict['response_parameters'] = self.MapParameters(method[4])
+          out.append(method_dict)
     return out
 
 
   def MapEnumFields(self, fields):
     out = []
     for field in fields:
       if field[0] == 'ENUM_FIELD':
         out.append({'name': field[1],
                     'value': field[2]})
     return out
@@ skipping 72 matching lines @@
     print("usage: %s filename" % (sys.argv[0]))
     sys.exit(1)
   tree = eval(open(sys.argv[1]).read())
   name = os.path.splitext(os.path.basename(sys.argv[1]))[0]
   result = Translate(tree, name)
   print(result)
 
 
 if __name__ == '__main__':
   Main()