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

chrome/browser/resources/options2/media_galleries_list.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 DeletableItem = options.DeletableItem;
   /** @const */ var DeletableItemList = options.DeletableItemList;
 
   /**
    * @constructor
    * @extends {DeletableItem}
    */
-  function MediaGalleryListItem(galleryInfo) {
+  function MediaGalleriesListItem(galleryInfo) {
     var el = cr.doc.createElement('div');
     el.galleryInfo_ = galleryInfo;
-    el.__proto__ = MediaGalleryListItem.prototype;
+    el.__proto__ = MediaGalleriesListItem.prototype;
     el.decorate();
     return el;
   }
 
-  MediaGalleryListItem.prototype = {
+  MediaGalleriesListItem.prototype = {
     __proto__: DeletableItem.prototype,
 
     decorate: function() {
       DeletableItem.prototype.decorate.call(this);
 
       var span = this.ownerDocument.createElement('span');
       span.textContent = this.galleryInfo_.displayName;
       this.contentElement.appendChild(span);
       this.contentElement.title = this.galleryInfo_.path;
     },
   };
 
-  var MediaGalleryList = cr.ui.define('list');
+  var MediaGalleriesList = cr.ui.define('list');
 
-  MediaGalleryList.prototype = {
+  MediaGalleriesList.prototype = {
     __proto__: DeletableItemList.prototype,
 
     /** @inheritDoc */
     decorate: function() {
       DeletableItemList.prototype.decorate.call(this);
       this.autoExpands_ = true;
     },
 
     /** @inheritDoc */
     createItem: function(galleryInfo) {
-      return new MediaGalleryListItem(galleryInfo);
+      return new MediaGalleriesListItem(galleryInfo);
     },
 
     /** @inheritDoc */
     deleteItemAtIndex: function(index) {
       chrome.send('forgetGallery', [this.dataModel.item(index).id]);
     },
   };
 
   return {
-    MediaGalleryList: MediaGalleryList
+    MediaGalleriesList: MediaGalleriesList
   };
 });