GCD Private API: Change hardcoded code to 4 digits not 5.

chrome/test/data/extensions/api_test/gcd_private/api/wifi_message.js

 // Copyright 2014 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.
 
 onload = function() {
   chrome.test.runTests([
     function wifiMessage() {
       var messages_needed = 3;
       function onConfirmCode(sessionId, status, confirmation) {
         chrome.test.assertEq("success", status);
-        chrome.test.assertEq("01234", confirmation.code);
+        chrome.test.assertEq("1234", confirmation.code);
         chrome.gcdPrivate.confirmCode(sessionId,
                                       confirmation.code,
                                       onSessionEstablished.bind(null,
                                                                 sessionId));
       }
 
       function onSessionEstablished(sessionId, status) {
         chrome.test.assertEq("success", status);
 
         chrome.gcdPrivate.sendMessage(sessionId, "/privet/v3/setup/start", {
@@ skipping 21 matching lines @@
 
         if (messages_needed == 0) {
           chrome.test.notifyPass();
         }
       }
 
       chrome.gcdPrivate.establishSession("1.2.3.4", 9090, onConfirmCode);
     }
   ]);
 };