Clear DNS cache and passive log collected on incognito close.

chrome/test/data/webui/net_internals/dns_view.js

 // Copyright (c) 2011 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.
 
 // Anonymous namespace
 (function() {
 
 /**
  * Checks the display on the DNS tab against the information it should be
  * displaying.
@@ skipping 237 matching lines @@
                           'somewhere.com', '1.2.3.4', 0, false));
     taskQueue.addTask(new AddCacheEntryTask(
                           'nowhere.com', '', NetError.NAME_NOT_RESOLVED, true));
     taskQueue.addTask(new ClearCacheTask());
     taskQueue.addTask(new WaitForEntryDestructionTask('somewhere.com'));
     taskQueue.addTask(new WaitForEntryDestructionTask('nowhere.com'));
   }
   taskQueue.run(true);
 });
 
+netInternalsTest.test('netInternalsDnsViewIncognitoClears', function() {
+  netInternalsTest.switchToView('dns');
+  var taskQueue = new netInternalsTest.TaskQueue(true);
+  taskQueue.addTask(netInternalsTest.getCreateIncognitoBrowserTask());
+  taskQueue.addTask(new AddCacheEntryTask(
+                        'somewhere.com', '1.2.3.4', 0, true));
+  taskQueue.addTask(netInternalsTest.getCloseIncognitoBrowserTask());
+  taskQueue.addTask(new WaitForEntryDestructionTask('somewhere.com'));
+  taskQueue.run(true);
+});
+
 })();  // Anonymous namespace