chromium/chrome/test/data/extensions/api_test/automation/sites/document_selection.html

<!--
Copyright 2015 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<head>
  <title>testdoc</title>
</head>
<p>para1</p>
<input type="text" id="textField" value="hello world">