Decouple FileSystem and WebSQL callbacks from VoidCallback and it non-refcounted

Source/bindings/v8/Dictionary.cpp

 /*
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 656 matching lines @@
     if (v8Value->IsObject()) {
         v8::Handle<v8::Object> wrapper = v8::Handle<v8::Object>::Cast(v8Value);
         v8::Handle<v8::Object> domError = wrapper->FindInstanceInPrototypeChain(V8DOMError::GetTemplate(m_isolate, worldType(m_isolate)));
         if (!domError.IsEmpty())
             error = V8DOMError::toNative(domError);
     }
     value = error;
     return true;
 }
 
-bool Dictionary::get(const String& key, RefPtr<VoidCallback>& value) const
+bool Dictionary::get(const String& key, OwnPtr<VoidCallback>& value) const
 {
     v8::Local<v8::Value> v8Value;
     if (!getKey(key, v8Value))
         return false;
 
     if (!v8Value->IsFunction())
         return false;
 
     value = V8VoidCallback::create(v8Value, getExecutionContext());
     return true;
@@ skipping 94 matching lines @@
 {
     if (forConstructor()) {
         exceptionState().throwTypeError(ExceptionMessages::failedToConstruct(interfaceName(), detail));
     } else {
         ASSERT(!methodName().isEmpty());
         exceptionState().throwTypeError(ExceptionMessages::failedToExecute(interfaceName(), methodName(), detail));
     }
 }
 
 } // namespace WebCore