      *  @playerversion AIR 1.5
      *  @productversion Flex 4
      */
-    override protected function viewportResizeHandler(event:ResizeEvent):void
+    override mx_internal function viewportResizeHandler(event:ResizeEvent):void
     {
         if (viewport)
         {

    }

    /**
     *  Set this scrollbar's maximum to the viewport's contentHeight 
     *  less the viewport height. 
     *


package spark.components
{
import mx.core.mx_internal;
import mx.events.PropertyChangeEvent;
import mx.events.ResizeEvent;

import spark.components.supportClasses.ScrollBar;
import spark.core.IViewport;
import spark.core.NavigationUnit;

use namespace mx_internal;

//--------------------------------------
//  Other metadata
