      */
     private var llv:LinearLayoutVector;
     
-    /**
-     *  @private
-     *  total percentages of children.  used to calculate estimatedHeight
-     */
-    private var totalPercentHeight:Number;
-    
-    /**
-     *  @private
-     *  actual space that is flexible.  used to calculate estimatedHeight
-     */
-    private var flexibleHeight:Number;
-    
-    /**
-     *  @private
-     */
-    private var lastEstimatedWidth:Number;    
-
-    /**
-     *  @private
-     */
-    private var inUpdateDisplayListVirtual:Boolean;
-    
     //--------------------------------------------------------------------------
     //
     //  Class methods

import flash.events.Event;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.utils.Dictionary;

import mx.containers.utilityClasses.Flex;
import mx.core.FlexVersion;
import mx.core.IInvalidating;
import mx.core.ILayoutElement;
import mx.core.IVisualElement;
import mx.core.UIComponentGlobals;
import mx.core.mx_internal;
import mx.events.FlexEvent;
import mx.events.PropertyChangeEvent;
import mx.managers.ILayoutManagerClient;

import spark.components.DataGroup;
import spark.components.supportClasses.GroupBase;

                    {
                        measuredHeight -= llv.getMajorSize(i);
                        measuredHeight += element.getPreferredBoundsHeight();
                    }
                }
            }
            
            layoutTarget.measuredHeight = measuredHeight;
            
            if (oldLength != -1)
                llv.length = oldLength;
        }
