1. DomName('CompositorWorkerGlobalScope.cancelAnimationFrame')
  2. DocsEditable()
  3. Experimental()
void cancelAnimationFrame(int handle)

Source 

@DomName('CompositorWorkerGlobalScope.cancelAnimationFrame')
@DocsEditable()
@Experimental() // untriaged
void cancelAnimationFrame(int handle) => _blink.BlinkCompositorWorkerGlobalScope.instance.cancelAnimationFrame_Callback_1_(this, handle);