* <b>DOM</b>: Implements {@link DocumentView#getDefaultView()}.
* @return a ViewCSS object.
*/
public AbstractView getDefaultView() {
if (defaultView == null) {
defaultView = new SVGViewCSS(this, getSVGContext());
SVGDOMImplementation impl = (SVGDOMImplementation)implementation;
((SVGViewCSS)defaultView).setUserAgentStyleSheet
(impl.getUserAgentStyleSheet());
}
return defaultView;