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

mojo/apps/js/bindings/waiting_callback.h

 // 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.
 
 #ifndef MOJO_APPS_JS_BINDINGS_WAITING_CALLBACK_H_
 #define MOJO_APPS_JS_BINDINGS_WAITING_CALLBACK_H_
 
+#include "gin/handle.h"
 #include "gin/runner.h"
 #include "gin/wrappable.h"
 #include "mojo/public/bindings/lib/bindings_support.h"
 
 namespace mojo {
 namespace js {
 
 class WaitingCallback : public gin::Wrappable,
                         public BindingsSupport::AsyncWaitCallback {
  public:
-  static scoped_refptr<WaitingCallback> Create(
+  static gin::Handle<WaitingCallback> Create(
       v8::Isolate* isolate, v8::Handle<v8::Function> callback);
 
   static gin::WrapperInfo kWrapperInfo;
   virtual gin::WrapperInfo* GetWrapperInfo() OVERRIDE;
   static void EnsureRegistered(v8::Isolate* isolate);
 
   BindingsSupport::AsyncWaitID wait_id() const {
     return wait_id_;
   }
 
@@ skipping 18 matching lines @@
 
 namespace gin {
 
 template<>
 struct Converter<mojo::js::WaitingCallback*>
     : public WrappableConverter<mojo::js::WaitingCallback> {};
 
 } // namespace gin
 
 #endif  // MOJO_APPS_JS_BINDINGS_WAITING_CALLBACK_H_