function populateBackendNodeIdMap(nodeIds)
        {
            if (nodeIds) {
                for (var i = 0; i < requestedNodeIds.length; ++i) {
                    var nodeId = nodeIds[i];
                    if (nodeId)
                        this._backendNodeIdToNodeId[requestedNodeIds[i]] = nodeId;
                }
            }
            callback();
        }
@this {WebInspector.LayerTreeBase}
@param {?Array.<number>} nodeIds