function handleLoadAllChildren(event)
        {
            var visibleChildCount = this._visibleChildren(treeElement.node()).length;
            this.setExpandedChildrenLimit(treeElement, Math.max(visibleChildCount, treeElement.expandedChildrenLimit() + WebInspector.ElementsTreeElement.InitialChildrenLimit));
            event.consume();
        }
@this {WebInspector.ElementsTreeOutline}
@param {!Event} event