[MD Extensions] Update polymer properties ordering

chrome/browser/resources/md_extensions/sidebar.js

Index: chrome/browser/resources/md_extensions/sidebar.js
diff --git a/chrome/browser/resources/md_extensions/sidebar.js b/chrome/browser/resources/md_extensions/sidebar.js
index 7eab946543428376dad5a6d7c79cdd512439618b..55e62fac45ddf42330f7abaad74571feec190ecc 100644
--- a/chrome/browser/resources/md_extensions/sidebar.js
+++ b/chrome/browser/resources/md_extensions/sidebar.js
@@ -49,6 +49,8 @@ cr.define('extensions', function() {
   var Sidebar = Polymer({
     is: 'extensions-sidebar',
 
+    behaviors: [I18nBehavior],
+
     properties: {
       inDevMode: {
         type: Boolean,
@@ -56,8 +58,6 @@ cr.define('extensions', function() {
       },
     },
 
-    behaviors: [I18nBehavior],
-
     /** @param {extensions.SidebarDelegate} delegate */
     setDelegate: function(delegate) {
       /** @private {extensions.SidebarDelegate} */