Add missing argument to Element.setAttribute() calls

native_client_sdk/src/examples/api/var_dictionary/example.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 attachListeners() {
   var radioEls = document.querySelectorAll('input[type="radio"]');
   for (var i = 0; i < radioEls.length; ++i) {
     radioEls[i].addEventListener('click', onRadioClicked);
   }
 
@@ skipping 11 matching lines @@
 }
 
 function onRadioClicked(e) {
   var divId = this.id.slice(5);  // skip "radio"
   var functionEls = document.querySelectorAll('.function');
   for (var i = 0; i < functionEls.length; ++i) {
     var visible = functionEls[i].id === divId;
     if (functionEls[i].id === divId)
       functionEls[i].removeAttribute('hidden');
     else
-      functionEls[i].setAttribute('hidden');
+      functionEls[i].setAttribute('hidden', '');
   }
 }
 
 function getButtonClicked(e) {
   var key = document.getElementById('getKey').value;
   common.naclModule.postMessage({cmd: 'Get', key: key});
 }
 
 function setButtonClicked(e) {
   var key = document.getElementById('setKey').value;
@@ skipping 37 matching lines @@
   // Note that cmd is a String object, not a primitive, so the comparison cmd
   // !== '' will always fail.
   if (cmd != '') {
     common.logMessage(
         'Function ' + cmd + ' returned ' + JSON.stringify(result));
   }
 
   var dictEl = document.getElementById('dict');
   dictEl.textContent = JSON.stringify(newDict, null, '  ');
 }