1. DomName('Performance.measure')
  2. DocsEditable()
  3. Experimental()
void measure(String measureName, String startMark, String endMark)

Source 

@DomName('Performance.measure')
@DocsEditable()
// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/UserTiming/Overview.html#extensions-performance-interface
@Experimental()
void measure(String measureName, String startMark, String endMark) => _blink.BlinkPerformance.instance.measure_Callback_3_(this, measureName, startMark, endMark);