rem: setTimeout(function () { panel.updateTimelineDividersIfNeeded() }, 0); 
add: WebInspector.animateStyle([{element: this.tipBalloonElement, start: {left: 145, opacity: 1}, end: {left: 160, opacity: 0}}], 250, function() { element.addStyleClass("hidden") }); 
context:             setTimeout(function () { panel.updateTimelineDividersIfNeeded() }, 0);
meta: 10664	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10664/15cd3c7aba7aae607bed1b6500a558458bce0100/NetworkPanel.js/buggy/third_party/WebKit/WebCore/page/inspector/NetworkPanel.js