function mycallback(error, result, wasThrown)
        {
            if (!callback)
                return;
            if (error)
                callback(null, false);
            else
                callback(this.target().runtimeModel.createRemoteObject(result), wasThrown);
        }
@param {?Protocol.Error} error
@param {!RuntimeAgent.RemoteObject} result
@param {boolean=} wasThrown
@this {WebInspector.RemoteObjectImpl}