move constructors to new style callbacks

Source/bindings/v8/custom/V8MessageChannelCustom.cpp

 /*
  * Copyright (C) 2009 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
@@ skipping 26 matching lines @@
 #include "bindings/v8/V8Utilities.h"
 #include "core/dom/Document.h"
 #include "core/dom/MessageChannel.h"
 #include "core/page/Frame.h"
 #include "core/workers/WorkerContext.h"
 
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
-v8::Handle<v8::Value> V8MessageChannel::constructorCustom(const v8::Arguments& args)
+void V8MessageChannel::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     ScriptExecutionContext* context = getScriptExecutionContext();
 
     RefPtr<MessageChannel> obj = MessageChannel::create(context);
 
     v8::Local<v8::Object> wrapper = args.Holder();
 
     // Create references from the MessageChannel wrapper to the two
     // MessagePort wrappers to make sure that the MessagePort wrappers
     // stay alive as long as the MessageChannel wrapper is around.
     V8HiddenPropertyName::setNamedHiddenReference(wrapper, "port1", toV8(obj->port1(), args.Holder(), args.GetIsolate()));
     V8HiddenPropertyName::setNamedHiddenReference(wrapper, "port2", toV8(obj->port2(), args.Holder(), args.GetIsolate()));
 
     V8DOMWrapper::associateObjectWithWrapper(obj.release(), &info, wrapper, args.GetIsolate(), WrapperConfiguration::Dependent);
-    return wrapper;
+    args.GetReturnValue().Set(wrapper);
 }
 
 } // namespace WebCore