static v8::Handle<v8::Value> webkitGetEntriesByTypeCallback(const v8::Arguments& args)
{
    if (args.Length() < 1)
        return throwNotEnoughArgumentsError(args.GetIsolate());
    Performance* imp = V8Performance::toNative(args.Holder());
    V8TRYCATCH_FOR_V8STRINGRESOURCE(V8StringResource<>, entryType, MAYBE_MISSING_PARAMETER(args, 0, DefaultIsUndefined));
    return toV8(imp->webkitGetEntriesByType(entryType), args.Holder(), args.GetIsolate());
}