code: function () {
  		if (this.$.client.hasNode()) {
  			var c$ = this.$.client.children;
  			var n = c$.length && c$[c$.length-1].hasNode();
  			if (n) {
  				this.$.client.reflow();
  				//Workaround: scrollWidth value not working in Firefox, so manually compute
  				//return (this.$.client.node.scrollWidth > this.$.client.node.clientWidth);
  				return ((n.offsetLeft + n.offsetWidth) > this.$.client.node.clientWidth);
  			}
  		}
  	}
docs: Determines whether the toolbar has content that is not visible.
  
  @return {Boolean} `true` if some toolbar content is not visible.
  @private