1. DomName('HTMLVideoElement.webkitExitFullscreen')
  2. DocsEditable()
  3. SupportedBrowser(SupportedBrowser.CHROME)
  4. SupportedBrowser(SupportedBrowser.SAFARI)
  5. Experimental()
void exitFullscreen()

Source 

@DomName('HTMLVideoElement.webkitExitFullscreen')
@DocsEditable()
@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Experimental()
// https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html#dom-document-exitfullscreen
void exitFullscreen() => _blink.BlinkHTMLVideoElement.instance.webkitExitFullscreen_Callback_0_(this);