title: How to programmatically open chrome extension popup.html
body: <p>I have a created a desktop notification using google extension which works great: </p>
  
  <pre><code>icon = '';
      var popup = window.webkitNotifications.createNotification(my notification');
              icon, 'Awesome title', 'Click here to view more. ');
      popup.show();
  </code></pre>
  
  <p>Is there a way to launch the actual google extension popup.html (as shown on the image below), when the user click on the the desktop notification? </p>
  
  <p><img src="https://i.stack.imgur.com/6r0zk.png" alt="The popup.html">
  <img src="https://i.stack.imgur.com/MwIc6.png" alt="The desktop notification"></p>
  
  <p>Thanks. </p>