IDL: fix handling of non-decimal and unsigned default values

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 432 matching lines @@
     # FIXME: This code is unnecessarily complicated due to the rather
     # inconsistent way the upstream IDL parser outputs default values.
     # http://crbug.com/374178
     idl_type = node.GetProperty('TYPE')
     if idl_type == 'DOMString':
         value = node.GetProperty('NAME')
         if '"' in value or '\\' in value:
             raise ValueError('Unsupported string value: %r' % value)
         return IdlLiteral(idl_type, value)
     if idl_type == 'integer':
-        return IdlLiteral(idl_type, int(node.GetProperty('NAME')))
+        return IdlLiteral(idl_type, int(node.GetProperty('NAME'), base=0))
     if idl_type == 'float':
         return IdlLiteral(idl_type, float(node.GetProperty('VALUE')))
     if idl_type == 'boolean':
         return IdlLiteral(idl_type, node.GetProperty('VALUE'))
     if idl_type == 'NULL':
         return IdlLiteralNull()
     raise ValueError('Unrecognized default value type: %s' % idl_type)
 
 
 ################################################################################
@@ skipping 327 matching lines @@
     child_class = child.GetClass()
     if child_class != 'Type':
         raise ValueError('Unrecognized node class: %s' % child_class)
     return type_node_to_type(child)
 
 
 def union_type_node_to_idl_union_type(node, is_nullable=False):
     member_types = [type_node_to_type(member_type_node)
                     for member_type_node in node.GetChildren()]
     return IdlUnionType(member_types, is_nullable=is_nullable)