1. @DomName('CompositorWorkerGlobalScope.requestAnimationFrame')
  2. @DocsEditable()
  3. @Experimental()
int requestAnimationFrame(FrameRequestCallback callback)

Source 

@DomName('CompositorWorkerGlobalScope.requestAnimationFrame')
@DocsEditable()
@Experimental() // untriaged
int requestAnimationFrame(FrameRequestCallback callback) =>
    _blink.BlinkCompositorWorkerGlobalScope.instance
        .requestAnimationFrame_Callback_1_(this, callback);