Webview tag creation should be using storage partitions.

chrome/test/data/extensions/platform_apps/web_view_isolation/main.js

 // Copyright (c) 2012 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.
 
 chrome.test.getConfig(function(config) {
   var url = 'http://localhost:' + config.testServer.port +
       '/files/extensions/platform_apps/web_view_isolation/cookie.html';
   var url2 = 'http://localhost:' + config.testServer.port +
       '/files/extensions/platform_apps/web_view_isolation/cookie2.html';
+  var url3 = 'http://localhost:' + config.testServer.port +
+      '/files/extensions/platform_apps/web_view_isolation/storage1.html';
+  var url4 = 'http://localhost:' + config.testServer.port +
+      '/files/extensions/platform_apps/web_view_isolation/storage2.html';
   var node = document.getElementById('web_view_container');
-  node.innerHTML = "<object id='webview' src=" + url +
+  node.innerHTML =
+      "<object id='webview' src=" + url +
       " type='application/browser-plugin' width=500 height=550></object>" +
       "<object id='webview2' src=" + url2 +
+      " type='application/browser-plugin' width=500 height=550></object>" +
+      "<object id='webview2' partition='foo' src=" + url3 +

[Charlie Reis, 2012/11/06 00:17:18]

Again, potential for confusion between all the 'foo's.  Can this be something
different?

[nasko, 2012/11/06 01:21:52]

Done.

+      " type='application/browser-plugin' width=500 height=550></object>" +
+      "<object id='webview2' partition='foo' src=" + url4 +
       " type='application/browser-plugin' width=500 height=550></object>";
   chrome.test.sendMessage('Launched');
 });