DomRectReadOnly(num x, num y, num width, num height)

Source 

@DomName('DOMRectReadOnly.DOMRectReadOnly')
@DocsEditable()
factory DomRectReadOnly(num x, num y, num width, num height) {
  return _blink.BlinkDOMRectReadOnly.instance
      .constructorCallback_4_(x, y, width, height);
}