<?xml version='1.0' encoding='UTF-8'?>
<gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
  <app appid='aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'>
    <updatecheck codebase='http://autosmsclients.googlecode.com/files/autosmschrome.crx' version='1.1' />
  </app>
</gupdate>
Add chrome extension update config file.
Add chrome extension update config file.