title: How to make Chrome Apps appear in dock/status bar
body: <p>If you have ever used the Google Hangouts chrome app you can see that an icon is added to the status bar (not sure if status bar is the correct name).</p>
  
  <p><img src="https://i.stack.imgur.com/bm4cK.png" alt="enter image description here"></p>
  
  <p>Is there an api for this? how can I make my chrome app appear over there?</p>