     {
         super.invalidateDisplayList();
     }
-	
+    
     /**
      *  @inheritDoc
      *  


        super.updateDisplayList(unscaledWidth, unscaledHeight);

		if (maskChanged)
        {
            maskChanged = false;
            if (_mask)
            {
            	maskTypeChanged = true;
            
		        if (!_mask.parent)
	            {
	            	// TODO!!! This needs to be a sibling because alpha
	                super.addChild(_mask);
	                var maskComp:UIComponent = _mask as UIComponent;
	                if (maskComp)
	                {
		                maskComp.validateProperties();
	                    maskComp.validateSize();
	                    maskComp.setActualSize(maskComp.getExplicitOrMeasuredWidth(), 
	                                           maskComp.getExplicitOrMeasuredHeight());
	                }
	            }
	        }
        }
        
        if (maskTypeChanged)    

     *  Sets the <code>contentWidth</code> and <code>contentHeight</code>
     *  properties.
     * 
     *  This method is intended for layout class developers who should
     *  call it from <code>updateDisplayList()</code> methods.
     *
     *  @param width The new value of <code>contentWidth</code>.
