title: NotificationCompat.setStyle() can't get Notification.MediaStyle
body: <p>I've found out that the MediaStyle setStyle is not working when I'm using 
  <code>NotificationCompat.builder(this)</code> to make a notification.</p>
  
  <p>I mean, When using this on <code>NotificationCompat.Builder(this)</code>:</p>
  
  <pre><code>.setStyle(new Notification.MediaStyle()
           .setMediaSession(mySession))
  </code></pre>
  
  <p>It saying it wants to get <code>NotificationCompat.style</code> instead of <code>Notification.MediaStyle</code>.</p>
  
  <p>Can you help me solve that problem?
  Is there any replacement for the NotificationCompat?</p>
  
  <p>Thanks.</p>