move constructors to new style callbacks

Source/bindings/v8/custom/V8MessageChannelCustom.cpp

Index: Source/bindings/v8/custom/V8MessageChannelCustom.cpp
diff --git a/Source/bindings/v8/custom/V8MessageChannelCustom.cpp b/Source/bindings/v8/custom/V8MessageChannelCustom.cpp
index 918f43ac5336ca59d110a5898e8596ba931553d5..e5d0b654bb6d7bb81ef9b0753743cbf97c5968f2 100644
--- a/Source/bindings/v8/custom/V8MessageChannelCustom.cpp
+++ b/Source/bindings/v8/custom/V8MessageChannelCustom.cpp
@@ -44,7 +44,7 @@
 
 namespace WebCore {
 
-v8::Handle<v8::Value> V8MessageChannel::constructorCustom(const v8::Arguments& args)
+void V8MessageChannel::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     ScriptExecutionContext* context = getScriptExecutionContext();
 
@@ -59,7 +59,7 @@ v8::Handle<v8::Value> V8MessageChannel::constructorCustom(const v8::Arguments& a
     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