Autocomplete: Split menu resizing logic into its own method to create a more logical method to proxy for custom sizing.

ui/jquery.ui.autocomplete.js

@@ -326,10 +326,8 @@ $.widget( "ui.autocomplete", {
 
 	_suggest: function( items ) {
 		var ul = this.menu.element
-				.empty()
-				.zIndex( this.element.zIndex() + 1 ),
-			menuWidth,
-			textWidth;
+			.empty()
+			.zIndex( this.element.zIndex() + 1 );
 		this._renderMenu( ul, items );
 		// TODO refresh should check if the active item is still in the dom, removing the need for a manual deactivate
 		this.menu.deactivate();
@@ -338,9 +336,15 @@ $.widget( "ui.autocomplete", {
 			of: this.element
 		}, this.options.position ));
 
-		menuWidth = ul.width( "" ).outerWidth();
-		textWidth = this.element.outerWidth();
-		ul.outerWidth( Math.max( menuWidth, textWidth ) );
+		this._resizeMenu();
+	},
+
+	_resizeMenu: function() {
+		var ul = this.menu.element;
+		ul.outerWidth( Math.max(
+			ul.width( "" ).outerWidth(),
+			this.element.outerWidth()
+		) );
 	},
 
 	_renderMenu: function( ul, items ) {