public function layoutObjects(displayObjects:Array, bounds:Rectangle):Rectangle
   The DisplayObjects in the input parameter will be positioned and sized
   based on a specified rectangle. There is no requirement that the
   display objects remain entirely within the rectangle.
   
   
Returns the actual rectangular region in which the laid out
   children will appear. This may be larger or smaller than the
   suggested rectangle. This returned value is expected to be used by
   container components to determine if scrollbars or other navigation
   controls are needed.
   
   Parameters
|  | displayObjects:Array— An Array of DisplayObjects to be laid out. | 
|  | 
|  | bounds:Rectangle—   The rectangular region in which the display objects should be placed. | 
Returns
|  | Rectangle—     The actual region in which the display objects are contained. |