String scroll

Source 

@DomName('VTTRegion.scroll')
@DocsEditable()
@Experimental() // untriaged
String get scroll => _blink.BlinkVTTRegion.instance.scroll_Getter_(this);
void scroll=(String value)

Source 

@DomName('VTTRegion.scroll')
@DocsEditable()
@Experimental() // untriaged
set scroll(String value) =>
    _blink.BlinkVTTRegion.instance.scroll_Setter_(this, value);