chrome/common/extensions/docs/templates/intros/fileSystem.html

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    <td><strong>Description:</strong></td>
    <td>Use the <code>chrome.fileSystem</code> module
    to create, read, navigate, and write
    to a sandboxed section of the user's local file system.
    With this API,
    packaged apps can read and write
    to a user-selected location.
    For example,
    a text editor app can use the API
    to read and write local documents.</td>
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    <td><strong>Availability:</strong></td>
    <td>Google Chrome 23</td>
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    <td><strong>Permissions:</strong></td>
    <td><code>"fileSystem"</code>, <code>"fileSystem.write"</code>,
      <code>"fileSystem.retainEntries"</code></td>
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    <td><strong>Learn more:</strong></td>
    <td><a href="app_storage.html">Manage Data</a><br>
    <a href="angular_framework.html">Build Apps with AngularJS</a><br>
    <a href="https://developers.google.com/live/shows/7320022-1001/">Chrome Apps Office Hours:
    TextDrive and AngularJS</a></td>
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