[MD Extensions] Update polymer properties ordering

chrome/browser/resources/md_extensions/sidebar.js

 // Copyright 2015 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.exportPath('extensions');
 
 // Declare this here to make closure compiler happy, and us sad.
 /** @enum {number} */
 extensions.ShowingType = {
   EXTENSIONS: 0,
@@ skipping 31 matching lines @@
     /** Shows the keyboard shortcuts page. */
     showKeyboardShortcuts: assertNotReached,
 
     /** Shows the pack extension dialog. */
     showPackDialog: assertNotReached,
   };
 
   var Sidebar = Polymer({
     is: 'extensions-sidebar',
 
+    behaviors: [I18nBehavior],
+
     properties: {
       inDevMode: {
         type: Boolean,
         value: false,
       },
     },
 
-    behaviors: [I18nBehavior],
-
     /** @param {extensions.SidebarDelegate} delegate */
     setDelegate: function(delegate) {
       /** @private {extensions.SidebarDelegate} */
       this.delegate_ = delegate;
     },
 
     /** @param {extensions.SidebarListDelegate} listDelegate */
     setListDelegate: function(listDelegate) {
       /** @private {extensions.SidebarListDelegate} */
       this.listDelegate_ = listDelegate;
@@ skipping 36 matching lines @@
     },
   });
 
   return {
     Sidebar: Sidebar,
     SidebarDelegate: SidebarDelegate,
     SidebarListDelegate: SidebarListDelegate,
   };
 });