gin::Wrappable shouldn't inherit from base::RefCounted

gin/function_template.h.pump

 $$ This is a pump file for generating file templates.  Pump is a python
 $$ script that is part of the Google Test suite of utilities.  Description
 $$ can be found here:
 $$
 $$ http://code.google.com/p/googletest/wiki/PumpManual
 $$
 
 #ifndef GIN_FUNCTION_TEMPLATE_H_
 #define GIN_FUNCTION_TEMPLATE_H_
 
 $var MAX_ARITY = 4
 
 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "gin/arguments.h"
 #include "gin/converter.h"
+#include "gin/handle.h"
 #include "gin/public/gin_embedders.h"
 #include "gin/public/wrapper_info.h"
 #include "gin/wrappable.h"
 
 #include "v8/include/v8.h"
 
 namespace gin {
 
 class PerIsolateData;
 
@@ skipping 136 matching lines @@
 // gin::Converter.
 $range ARITY 0..MAX_ARITY
 $for ARITY [[
 $range ARG 1..ARITY
 
 template<typename R$for ARG [[, typename P$(ARG)]]>
 v8::Local<v8::FunctionTemplate> CreateFunctionTemplate(
     v8::Isolate* isolate,
     const base::Callback<R($for ARG , [[P$(ARG)]])> callback) {
   typedef internal::CallbackHolder<R($for ARG , [[P$(ARG)]])> HolderT;
-  scoped_refptr<HolderT> holder(new HolderT(callback));
+  gin::Handle<HolderT> holder = CreateHandle(isolate, new HolderT(callback));
   return v8::FunctionTemplate::New(
       isolate,
       &internal::DispatchToCallback<R$for ARG [[, P$(ARG)]]>,
       ConvertToV8<internal::CallbackHolderBase*>(isolate, holder.get()));
 }
 
 ]]
 
 }  // namespace gin
 
 #endif  // GIN_FUNCTION_TEMPLATE_H_