Merge pull request #4512 from nkoterba/fix_handle_promise

fix(core): Return promise from `handleWindowResize` method

Author: swalters

src/js/core/factories/Grid.js

@@ -1503,14 +1503,15 @@ angular.module('ui.grid')
    * @name handleWindowResize
    * @methodOf ui.grid.class:Grid
    * @description Triggered when the browser window resizes; automatically resizes the grid
+   * @returns {Promise} A resolved promise once the window resize has completed.
    */
   Grid.prototype.handleWindowResize = function handleWindowResize($event) {
     var self = this;
 
     self.gridWidth = gridUtil.elementWidth(self.element);
     self.gridHeight = gridUtil.elementHeight(self.element);
 
-    self.queueRefresh();
+    return self.queueRefresh();
   };
 
   /**