diff -r 56cd8111b7f7 -r 41300fa6a67c src/tools/uic/customwidgetsinfo.h
--- a/src/tools/uic/customwidgetsinfo.h	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/tools/uic/customwidgetsinfo.h	Tue Feb 02 00:43:10 2010 +0200
@@ -78,6 +78,8 @@
 
     bool extends(const QString &className, const QLatin1String &baseClassName) const;
 
+    bool isCustomWidgetContainer(const QString &className) const;
+
 private:
     typedef QMap<QString, DomCustomWidget*> NameCustomWidgetMap;
     NameCustomWidgetMap m_customWidgets;