Added event to networkingPrivate extension that portal detection is completed.

chrome/test/data/extensions/api_test/networking/test.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.
 
 var callbackPass = chrome.test.callbackPass;
 var callbackFail = chrome.test.callbackFail;
 var assertTrue = chrome.test.assertTrue;
 var assertFalse = chrome.test.assertFalse;
 var assertEq = chrome.test.assertEq;
 
@@ skipping 37 matching lines @@
         this.onNetworkChange);
   },
   listListener: function(expected, done) {
     var self = this;
     this.listenForChanges = function(list) {
       assertEq(expected, list);
       chrome.networkingPrivate.onNetworkListChanged.removeListener(
           self.listenForChanges);
       done();
     };
+  },
+  watchForCaptivePortalState: function(expectedNetworkPath,
+                                       expectedState,
+                                       done) {
+    var self = this;
+    this.onPortalDetectionCompleted = function(networkPath, state) {
+      assertEq(expectedNetworkPath, networkPath);
+      assertEq(expectedState, state);
+      chrome.networkingPrivate.onPortalDetectionCompleted.removeListener(
+          self.onPortalDetectionCompleted);
+      done();
+    };
+    chrome.networkingPrivate.onPortalDetectionCompleted.addListener(
+        self.onPortalDetectionCompleted);
   }
 };
 
 var availableTests = [
   function startConnect() {
     chrome.networkingPrivate.startConnect("stub_wifi2", callbackPass());
   },
   function startDisconnect() {
     // Must connect to a network before we can disconnect from it.
     chrome.networkingPrivate.startConnect("stub_wifi2", callbackPass(
@@ skipping 322 matching lines @@
                     ['stub_vpn1', 'Unknown']];
     networks.forEach(function(network) {
       var servicePath = network[0];
       var expectedStatus = network[1];
       chrome.networkingPrivate.getCaptivePortalStatus(
         servicePath,
         callbackPass(function(status) {
           assertEq(expectedStatus, status);
         }));
     });
-  }
+  },
+  function captivePortalNotification() {
+    var done = chrome.test.callbackAdded();
+    var listener =
+        new privateHelpers.watchForCaptivePortalState('wifi', 'Online', done);
+    chrome.test.sendMessage('notifyPortalDetectorObservers');
+  },
 ];
 
 var testToRun = window.location.search.substring(1);
 chrome.test.runTests(availableTests.filter(function(op) {
   return op.name == testToRun;
 }));