     /**
      *  @private
      */
-    mx_internal function invalidateTextLines(cause:String):void
+    mx_internal function invalidateTextLines():void
     {
         invalidateCompose = true;
     }

    {
        StyleProtoChain.styleChanged(this, styleProp);

        invalidateCompose = true;
    }

    //--------------------------------------------------------------------------


    /**
     *  @private
     *  The value of bounds.width, before the compose was done.
     */
    private var _composeWidth:Number;
