1. @DomName('HTMLMediaElement.captureStream')
  2. @DocsEditable()
  3. @Experimental()
MediaStream captureStream()

Source 

@DomName('HTMLMediaElement.captureStream')
@DocsEditable()
@Experimental() // untriaged
MediaStream captureStream() =>
    _blink.BlinkHTMLMediaElement.instance.captureStream_Callback_0_(this);