rem: domView.sidebarResizeElement.addEventListener("mousedown", function(event) { panel.rightSidebarResizerDragStart(event) }, false); 
add: var nodeItem = this.views.dom.treeOutline.findTreeElement(node, function(a, b) { return isAncestorNode.call(a, b); }, function(a) { return a.parentNode; }); 
context:     domView.sidebarResizeElement.addEventListener("mousedown", function(event) { panel.rightSidebarResizerDragStart(event) }, false);
meta: 10664	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10664/15cd3c7aba7aae607bed1b6500a558458bce0100/DocumentPanel.js/clean/third_party/WebKit/WebCore/page/inspector/DocumentPanel.js