1. @DomName('WorkerPerformance.getEntries')
  2. @DocsEditable()
  3. @Experimental()
List<PerformanceEntry> getEntries()

Source 

@DomName('WorkerPerformance.getEntries')
@DocsEditable()
@Experimental() // untriaged
List<PerformanceEntry> getEntries() =>
    (_blink.BlinkWorkerPerformance.instance.getEntries_Callback_0_(this));