Fix cr.exportPath()'s @return signature so the result can be used

ui/webui/resources/js/cr.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * The global object.
  * @type {!Object}
  * @const
  */
 var global = this;
 
 /** @typedef {{eventName: string, uid: number}} */
 var WebUIListener;
 
 /** Platform, package, object property, and Event support. **/
 var cr = cr || function() {
   'use strict';
 
   /**
    * Builds an object structure for the provided namespace path,
    * ensuring that names that already exist are not overwritten. For
    * example:
    * "a.b.c" -> a = {};a.b={};a.b.c={};
    * @param {string} name Name of the object that this file defines.
    * @param {*=} opt_object The object to expose at the end of the path.
    * @param {Object=} opt_objectToExportTo The object to add the path to;
    *     default is {@code global}.
+   * @return {!Object} The last object exported, i.e. ('cr.ui' will return the
+   *     a reference to the ui dictionary property of window.cr).

[dpapad, 2016/03/17 18:47:49]

Nit: Either put "i.e." within the parentheses, or remove the parentheses?

Also, s/return the a/return a

[Dan Beam, 2016/03/17 19:26:58]

Done.

    * @private
    */
   function exportPath(name, opt_object, opt_objectToExportTo) {
     var parts = name.split('.');
     var cur = opt_objectToExportTo || global;
 
     for (var part; parts.length && (part = parts.shift());) {
       if (!parts.length && opt_object !== undefined) {
         // last part and we have an object; use it
         cur[part] = opt_object;
       } else if (part in cur) {
         cur = cur[part];
       } else {
         cur = cur[part] = {};
       }
     }
     return cur;
-  };
+  }
 
   /**
    * Fires a property change event on the target.
    * @param {EventTarget} target The target to dispatch the event on.
    * @param {string} propertyName The name of the property that changed.
    * @param {*} newValue The new value for the property.
    * @param {*} oldValue The old value for the property.
    */
   function dispatchPropertyChange(target, propertyName, newValue, oldValue) {
     var e = new Event(propertyName + 'Change');
@@ skipping 413 matching lines @@
     get isLinux() {
       return /Linux/.test(navigator.userAgent);
     },
 
     /** Whether this is on Android. */
     get isAndroid() {
       return /Android/.test(navigator.userAgent);
     }
   };
 }();