  
     //--------------------------------------------------------------------------
     //
+    //  Class mixins
+    //
+    //--------------------------------------------------------------------------
+    
+    /**
+     *  @private
+     *  Placeholder for mixin by DropDownListBaseAccImpl.
+     */
+    mx_internal static var createAccessibilityImplementation:Function;
+    
+    //--------------------------------------------------------------------------
+    //
     //  Constructor
     //
     //--------------------------------------------------------------------------

[Exclude(name="dropEnabled", kind="property")]
[Exclude(name="selectedIndices", kind="property")]
[Exclude(name="selectedItems", kind="property")]

/**
 *  The DropDownListBase control contains a drop-down list

    //
    //--------------------------------------------------------------------------
    
    /**
     *  @private
     *  Called by the initialize() method of UIComponent
     *  to hook in the accessibility code.
     */
    override protected function initializeAccessibility():void
    {
        if (DropDownListBase.createAccessibilityImplementation != null)
            DropDownListBase.createAccessibilityImplementation(this);
    }
    /**
     *  @private
     */ 
