[Polymer] updating

chrome/browser/resources/md_downloads/crisper.js

 // Copyright (c) 2013 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.
 function assert(condition, opt_message) {
   if (!condition) {
     var message = 'Assertion failed';
     if (opt_message) message = message + ': ' + opt_message;
     var error = new Error(message);
     var global = function() {
       return this;
@@ skipping 1047 matching lines @@
         validKey = String(keyCode - 48);
       } else if (keyCode >= 96 && keyCode <= 105) {
         validKey = String(keyCode - 96);
       } else {
         validKey = KEY_CODE[keyCode];
       }
     }
     return validKey;
   }
   function normalizedKeyForEvent(keyEvent, noSpecialChars) {
-    return transformKey(keyEvent.key, noSpecialChars) || transformKeyIdentifier(keyEvent.keyIdentifier) || transformKeyCode(keyEvent.keyCode) || transformKey(keyEvent.detail ? keyEvent.detail.key : keyEvent.detail, noSpecialChars) || '';
+    if (keyEvent.key) {
+      return transformKey(keyEvent.key, noSpecialChars);
+    }
+    if (keyEvent.detail && keyEvent.detail.key) {
+      return transformKey(keyEvent.detail.key, noSpecialChars);
+    }
+    return transformKeyIdentifier(keyEvent.keyIdentifier) || transformKeyCode(keyEvent.keyCode) || '';
   }
   function keyComboMatchesEvent(keyCombo, event) {
     var keyEvent = normalizedKeyForEvent(event, keyCombo.hasModifiers);
     return keyEvent === keyCombo.key && (!keyCombo.hasModifiers || !!event.shiftKey === !!keyCombo.shiftKey && !!event.ctrlKey === !!keyCombo.ctrlKey && !!event.altKey === !!keyCombo.altKey && !!event.metaKey === !!keyCombo.metaKey);
   }
   function parseKeyComboString(keyComboString) {
     if (keyComboString.length === 1) {
       return {
         combo: keyComboString,
         key: keyComboString,
@@ skipping 5905 matching lines @@
   };
   return {
     Manager: Manager
   };
 });
 
 // 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.
 window.addEventListener('load', downloads.Manager.onLoad);