Oilpan: move Node traversal objects to the heap.

Source/bindings/scripts/v8_types.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 90 matching lines @@
     'unsigned int',
     'unsigned long',
     'unsigned short',
 ])
 CPP_SPECIAL_CONVERSION_RULES = {
     'CompareHow': 'Range::CompareHow',
     'Date': 'double',
     'Dictionary': 'Dictionary',
     'EventHandler': 'EventListener*',
     'MediaQueryListListener': 'RefPtrWillBeRawPtr<MediaQueryListListener>',
+    'NodeFilter': 'RefPtrWillBeRawPtr<NodeFilter>',

[haraken, 2014/05/18 08:45:48]

(Nit: Not related to this CL, we should remove special casing for
MediaQueryListListener and NodeFilter. I think it's doable :)

     'Promise': 'ScriptPromise',
     'ScriptValue': 'ScriptValue',
     # FIXME: Eliminate custom bindings for XPathNSResolver  http://crbug.com/345529
     'XPathNSResolver': 'RefPtrWillBeRawPtr<XPathNSResolver>',
     'boolean': 'bool',
     'unrestricted double': 'double',
     'unrestricted float': 'float',
 }
 
 
@@ skipping 520 matching lines @@
 def cpp_value_to_v8_value(idl_type, cpp_value, isolate='info.GetIsolate()', creation_context='', extended_attributes=None):
     """Returns an expression that converts a C++ value to a V8 value."""
     # the isolate parameter is needed for callback interfaces
     idl_type, cpp_value = preprocess_idl_type_and_value(idl_type, cpp_value, extended_attributes)
     this_v8_conversion_type = idl_type.v8_conversion_type(extended_attributes)
     format_string = CPP_VALUE_TO_V8_VALUE[this_v8_conversion_type]
     statement = format_string.format(cpp_value=cpp_value, isolate=isolate, creation_context=creation_context)
     return statement
 
 IdlType.cpp_value_to_v8_value = cpp_value_to_v8_value