[Cleanup] Files.app: Adds missing periods at the end of the descriptions.

chrome/browser/resources/file_manager/js/media/audio_player.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.
 
 /**
  * @param {HTMLElement} container Container element.
  * @constructor
  */
 function AudioPlayer(container) {
   this.container_ = container;
@@ skipping 180 matching lines @@
   // Load the selected track metadata first, then load the rest.
   this.loadMetadata_(playlist.position);
   for (i = 0; i != this.urls_.length; i++) {
     if (i != playlist.position)
       this.loadMetadata_(i);
   }
 };
 
 /**
  * Load metadata for a track.
- * @param {number} track Track number
+ * @param {number} track Track number.
  * @private
  */
 AudioPlayer.prototype.loadMetadata_ = function(track) {
   this.fetchMetadata_(
       this.urls_[track], this.displayMetadata_.bind(this, track));
 };
 
 /**
  * Display track's metadata.
  * @param {number} track Track number.
@@ skipping 395 matching lines @@
  * Restore the state after page/app reload.
  */
 FullWindowAudioControls.prototype.restorePlayState = function() {
   if (this.restoreWhenLoaded_) {
     this.restoreWhenLoaded_ = false;  // This should only work once.
     if (this.decodeState())
       return;
   }
   this.play();
 };