function callObserve(node, mutationId)
        {
            if (!this.hasEventListeners(WebInspector.DOMModel.Events.DOMMutated) || this._lastMutationId !== mutationId)
                return;

            this.dispatchEventToListeners(WebInspector.DOMModel.Events.DOMMutated, node);
        }
@this {WebInspector.DOMModel}
@param {!WebInspector.DOMNode} node
@param {number} mutationId