1. @DomName('WorkerPerformance.clearMarks')
  2. @DocsEditable()
  3. @Experimental()
void clearMarks(String markName)

Source 

@DomName('WorkerPerformance.clearMarks')
@DocsEditable()
@Experimental() // untriaged
void clearMarks(String markName) => _blink.BlinkWorkerPerformance.instance
    .clearMarks_Callback_1_(this, markName);