Rename media gallery -> media galleries in pref/UI components.

chrome/browser/resources/options2/media_galleries_manager_overlay.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.
 
 cr.define('options', function() {
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
   /** @const */ var OptionsPage = options.OptionsPage;
 
   /**
    * This class is an overlay which allows the user to add or remove media
    * galleries, and displays known media galleries.
    * @constructor
    * @extends {OptionsPage}
    */
-  function MediaGalleryManager() {
+  function MediaGalleriesManager() {
     OptionsPage.call(this, 'manageGalleries',
                      loadTimeData.getString('manageMediaGalleriesTabTitle'),
                      'manage-media-galleries-overlay');
   }
 
-  cr.addSingletonGetter(MediaGalleryManager);
+  cr.addSingletonGetter(MediaGalleriesManager);
 
-  MediaGalleryManager.prototype = {
+  MediaGalleriesManager.prototype = {
     __proto__: OptionsPage.prototype,
 
     /**
      * Decorate the overlay and set up event handlers.
      */
     initializePage: function() {
       OptionsPage.prototype.initializePage.call(this);
 
       this.availableGalleriesList_ = $('available-galleries-list');
-      options.MediaGalleryList.decorate(this.availableGalleriesList_);
+      options.MediaGalleriesList.decorate(this.availableGalleriesList_);
 
       $('new-media-gallery').addEventListener('click', function() {
         chrome.send('addNewGallery');
       });
 
       $('manage-media-confirm').addEventListener(
           'click', OptionsPage.closeOverlay.bind(OptionsPage));
 
       this.addEventListener('visibleChange', this.handleVisibleChange_);
     },
@@ skipping 10 matching lines @@
         this.availableGalleriesList_.redraw();
     },
 
     /**
      * @param {Array} galleries List of structs describibing galleries.
      * @private
      */
     setAvailableMediaGalleries_: function(galleries) {
       $('available-galleries-list').dataModel = new ArrayDataModel(galleries);
       // TODO(estade): show this section by default.
-      $('media-gallery-section').hidden = false;
+      $('media-galleries-section').hidden = false;
     },
   },
 
   // Forward public APIs to private implementations.
   [
     'setAvailableMediaGalleries',
   ].forEach(function(name) {
-    MediaGalleryManager[name] = function() {
-      var instance = MediaGalleryManager.getInstance();
+    MediaGalleriesManager[name] = function() {
+      var instance = MediaGalleriesManager.getInstance();
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
-    MediaGalleryManager: MediaGalleryManager
+    MediaGalleriesManager: MediaGalleriesManager
   };
 });