    /**
     * @class Ext.layout.container.Auto
     * @extends Ext.layout.container.Container
     *
     * <p>The AutoLayout is the default layout manager delegated by {@link Ext.container.Container} to
     * render any child Components when no <tt>{@link Ext.container.Container#layout layout}</tt> is configured into
     * a <tt>{@link Ext.container.Container Container}.</tt>.  AutoLayout provides only a passthrough of any layout calls
     * to any child containers.</p>
     * {@img Ext.layout.container.Auto/Ext.layout.container.Auto.png Ext.layout.container.Auto container layout}
     * Example usage:
     	Ext.create('Ext.Panel', {
    		width: 500,
    		height: 280,
    		title: "AutoLayout Panel",
    		layout: 'auto',
    		renderTo: document.body,
    		items: [{
    			xtype: 'panel',
    			title: 'Top Inner Panel',
    			width: '75%',
    			height: 90
    		},{
    			xtype: 'panel',
    			title: 'Bottom Inner Panel',
    			width: '75%',
    			height: 90
    		}]
    	});
     */

    Ext.define('Ext.layout.container.Auto', {

        /* Begin Definitions */

        alias: ['layout.auto', 'layout.autocontainer'],

        extend: 'Ext.layout.container.Container',

        /* End Definitions */

        type: 'autocontainer',

        fixedLayout: false,

        bindToOwnerCtComponent: true,

        // @private
        onLayout : function(owner, target) {
            var me = this,
                items = me.getLayoutItems(),
                ln = items.length,
                i;

            // Ensure the Container is only primed with the clear element if there are child items.
            if (ln) {
                // Auto layout uses natural HTML flow to arrange the child items.
                // To ensure that all browsers (I'm looking at you IE!) add the bottom margin of the last child to the
                // containing element height, we create a zero-sized element with style clear:both to force a "new line"
                if (!me.clearEl) {
                    me.clearEl = me.getRenderTarget().createChild({
                        cls: Ext.baseCSSPrefix + 'clear',
                        role: 'presentation'
                    });
                }

                // Auto layout allows CSS to size its child items.
                for (i = 0; i < ln; i++) {
                    me.setItemSize(items[i]);
                }
            }
        }
    });