             return;
 
         updateScrollRect(g.width, g.height);
-        // TBD: subclasses override to update first,lastIndexInView 
     }
     
     /**

        var g:GroupBase = target;
        if (!g)
            return;

        var hsp:Number = horizontalScrollPosition;
        var vsp:Number = verticalScrollPosition;

import flash.ui.Keyboard;

import flex.core.GroupBase;
import flex.intf.ILayoutItem;
import flash.events.EventDispatcher;

    
public class LayoutBase extends EventDispatcher
{
    //--------------------------------------------------------------------------
    //
