[Cleanup] Files.app: add missing periods on comments.

chrome/browser/resources/file_manager/js/util.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.
 
 /**
  * Namespace for utility functions.
  */
 var util = {};
 
 /**
@@ skipping 1049 matching lines @@
  * Max number of items.
  */
 util.AppCache.CAPACITY = 100;
 
 /**
  * Default lifetime.
  */
 util.AppCache.LIFETIME = 30 * 24 * 60 * 60 * 1000;  // 30 days.
 
 /**
- * @param {string} key Key
+ * @param {string} key Key.
  * @param {function(number)} callback Callback accepting a value.
  */
 util.AppCache.getValue = function(key, callback) {
   util.AppCache.read_(function(map) {
     var entry = map[key];
     callback(entry && entry.value);
   });
 };
 
 /**
@@ skipping 170 matching lines @@
  * overriden).
  * @param {Object} object The object.
  * @param {string} propertyName The property name.
  * @param {*} value Value to set.
  */
 util.callInheritedSetter = function(object, propertyName, value) {
   var d = util.findPropertyDescriptor(Object.getPrototypeOf(object),
                                       propertyName);
   d.set.call(object, value);
 };