      *   the NativeWindowResize to indicate the edit or corner that was clicked. If
      *   no edge or corner were clicked then return NativeWindowResize.NONE.
      */
-    private function hitTestResizeEdge(event:MouseEvent):String
+    mx_internal function hitTestResizeEdge(event:MouseEvent):String
     {
         // If we clicked on a child of the contentGroup, then don't resize
         if (event.target is DisplayObject && event.target != contentGroup)

        if (instance == titleBar)
        {
            if (!nativeWindow.closed)
                systemManager.stage.nativeWindow.title = _title;
            titleBar.title = _title;
            titleChanged = false;
        }

     */
    protected function mouseDownHandler(event:MouseEvent):void
    {
        if (event.target == gripper)
        {
            startResize(NativeWindowResize.BOTTOM_RIGHT);
            event.stopPropagation();
        }

        if (systemManager.stage.nativeWindow.systemChrome != "none")
            return;

        var edgeOrCorner:String = mx_internal::hitTestResizeEdge(event);
        if (edgeOrCorner != NativeWindowResize.NONE)
        {
            startResize(edgeOrCorner);
            event.stopPropagation();
        }
    }

