Pass in domData as a parameter to unwrapDartWrapper.

tools/dom/scripts/systemnative.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for the systems to generate
 native binding from the IDL database."""
 
 import emitter
 import os
@@ skipping 359 matching lines @@
     to_native_emitter = emitter.Emitter()
     if self._interface_type_info.custom_to_native():
       return_type = 'PassRefPtr<NativeType>'
       to_native_body = ';'
       to_native_arg_body = ';'
     else:
       return_type = 'NativeType*'
       to_native_body = emitter.Format(
           '\n'
           '    {\n'
-          '        return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(handle, exception);\n'
+          '        DartDOMData* domData = DartDOMData::current();\n'
+          '        return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(domData, handle, exception);\n'
           '    }',
           INTERFACE=self._interface.id)
       to_native_arg_body = emitter.Format(
           '\n'
           '    {\n'
           '        return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(args, index, exception);\n'
           '    }',
           INTERFACE=self._interface.id)
 
     to_native_emitter.Emit(
@@ skipping 791 matching lines @@
             '    if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount))\n'
             '        return func;\n',
             CLASS_NAME=os.path.splitext(os.path.basename(path))[0])
 
 def _IsOptionalStringArgumentInInitEventMethod(interface, operation, argument):
   return (
       interface.id.endswith('Event') and
       operation.id.startswith('init') and
       argument.ext_attrs.get('Default') == 'Undefined' and
       argument.type.id == 'DOMString')