Update a test to use PushSubscription.getKey()

chrome/test/data/push_messaging/push_test.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.
 
 'use strict';
 
 var resultQueue = new ResultQueue();
 var pushSubscription = null;
 
 var pushSubscriptionOptions = {
@@ skipping 93 matching lines @@
           sendResultToTest(subscription.endpoint);
         });
   }).catch(sendErrorToTest);
 }
 
 function getCurve25519dh() {
   navigator.serviceWorker.ready.then(function(swRegistration) {
     return swRegistration.pushManager.getSubscription()
         .then(function(subscription) {
           sendResultToTest(btoa(String.fromCharCode.apply(null,
-              new Uint8Array(subscription.curve25519dh))));
+              new Uint8Array(subscription.getKey('curve25519dh')))));
         });
   }).catch(sendErrorToTest);
 }
 
 function permissionState() {
   navigator.serviceWorker.ready.then(function(swRegistration) {
     return swRegistration.pushManager.permissionState(pushSubscriptionOptions)
         .then(function(permission) {
           sendResultToTest('permission status - ' + permission);
         });
@@ skipping 28 matching lines @@
     sendResultToTest(subscription ? 'true - subscribed'
                                   : 'false - not subscribed');
   }).catch(sendErrorToTest);
 }
 
 navigator.serviceWorker.addEventListener('message', function(event) {
   var message = JSON.parse(event.data);
   if (message.type == 'push')
     resultQueue.push(message.data);
 }, false);