Oilpan: move Node traversal objects to the heap.

Source/bindings/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. 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.
@@ skipping 528 matching lines @@
     return std::numeric_limits<double>::quiet_NaN();
 }
 
 inline v8::Handle<v8::Value> v8DateOrNaN(double value, v8::Isolate* isolate)
 {
     ASSERT(isolate);
     return v8::Date::New(isolate, std::isfinite(value) ? value : std::numeric_limits<double>::quiet_NaN());
 }
 
 // FIXME: Remove the special casing for NodeFilter and XPathNSResolver.
-PassRefPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Isolate*);
+PassRefPtrWillBeRawPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Isolate*);
 PassRefPtrWillBeRawPtr<XPathNSResolver> toXPathNSResolver(v8::Handle<v8::Value>, v8::Isolate*);
 
 template<class T> struct NativeValueTraits;
 
 template<>
 struct NativeValueTraits<String> {
     static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String());
         return stringValue;
@@ skipping 384 matching lines @@
     RefPtr<ScriptState> m_scriptState;
 };
 
 void GetDevToolsFunctionInfo(v8::Handle<v8::Function>, v8::Isolate*, int& scriptId, String& resourceName, int& lineNumber);
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> devToolsTraceEventData(ExecutionContext*, v8::Handle<v8::Function>, v8::Isolate*);
 
 
 } // namespace WebCore
 
 #endif // V8Binding_h