[MD Extensions] Update polymer properties ordering

chrome/browser/resources/md_extensions/shortcut_input.js

Index: chrome/browser/resources/md_extensions/shortcut_input.js
diff --git a/chrome/browser/resources/md_extensions/shortcut_input.js b/chrome/browser/resources/md_extensions/shortcut_input.js
index e32cc6e256f17f76144f45562b478d004ec5d52f..6e54fb5d4351066101eed465203707a4bbba91fe 100644
--- a/chrome/browser/resources/md_extensions/shortcut_input.js
+++ b/chrome/browser/resources/md_extensions/shortcut_input.js
@@ -9,6 +9,8 @@ cr.define('extensions', function() {
   var ShortcutInput = Polymer({
     is: 'extensions-shortcut-input',
 
+    behaviors: [I18nBehavior],
+
     properties: {
       item: {
         type: String,
@@ -34,8 +36,6 @@ cr.define('extensions', function() {
       },
     },
 
-    behaviors: [I18nBehavior],
-
     ready: function() {
       var node = this.$['input'];
       node.addEventListener('mouseup', this.startCapture_.bind(this));