Use real IDL types in unit test stubs.

third_party/WebKit/Source/bindings/scripts/idl_definitions.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 423 matching lines @@
                 self.operations.append(IdlOperation.from_exception_operation_node(child))
             else:
                 raise ValueError('Unrecognized node class: %s' % child_class)
 
 
 ################################################################################
 # Attributes
 ################################################################################
 
 class IdlAttribute(TypedObject):
-    def __init__(self, node):
-        self.is_read_only = bool(node.GetProperty('READONLY'))
-        self.is_static = bool(node.GetProperty('STATIC'))
-        self.name = node.GetName()
-        # Defaults, overridden below
+    def __init__(self, node=None):
+        self.is_read_only = bool(node.GetProperty('READONLY')) if node else False
+        self.is_static = bool(node.GetProperty('STATIC')) if node else False
+        self.name = node.GetName() if node else None
         self.idl_type = None
         self.extended_attributes = {}
 
-        children = node.GetChildren()
-        for child in children:
-            child_class = child.GetClass()
-            if child_class == 'Type':
-                self.idl_type = type_node_to_type(child)
-            elif child_class == 'ExtAttributes':
-                self.extended_attributes = ext_attributes_node_to_extended_attributes(child)
-            else:
-                raise ValueError('Unrecognized node class: %s' % child_class)
+        if node:
+            children = node.GetChildren()
+            for child in children:
+                child_class = child.GetClass()
+                if child_class == 'Type':
+                    self.idl_type = type_node_to_type(child)
+                elif child_class == 'ExtAttributes':
+                    self.extended_attributes = ext_attributes_node_to_extended_attributes(child)
+                else:
+                    raise ValueError('Unrecognized node class: %s' % child_class)
 
     def accept(self, visitor):
         visitor.visit_attribute(self)
 
 
 ################################################################################
 # Constants
 ################################################################################
 
 class IdlConstant(TypedObject):
@@ skipping 640 matching lines @@
         self.visit_typed_object(argument)
 
     def visit_iterable(self, iterable):
         self.visit_typed_object(iterable)
 
     def visit_maplike(self, maplike):
         self.visit_typed_object(maplike)
 
     def visit_setlike(self, setlike):
         self.visit_typed_object(setlike)