chromium/chrome/test/data/extensions/platform_apps/web_view/task_manager/main.html

<!doctype html>
<!--
Copyright 2014 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<html>
<head>
  <title>App Page Title</title>
</head>
<body>
  <div id="webview-tag-container"></div>
  <script src="main.js"></script>
</body>
</html>