title: Android System - app(s) running in background notification
body: <p>Since the O Preview the new notification for apps 'running in the background' has appeared. Originally even Google Play Music fell foul of this <a href="https://issuetracker.google.com/issues/62470721" rel="noreferrer">https://issuetracker.google.com/issues/62470721</a></p>
  
  <p>Google have somehow fixed this in (Google Play Music and Maps at least) </p>
  
  <p><img src="https://i.stack.imgur.com/W8l0X.png" width="400" height="740"></p>
  
  <p>I have updated my test app to target O and using the new Context.StartForegroundService as per the behaviour change guidelines then  added notification channel to the notification posted in startForeground.</p>
  
  <p>However the 'running in background' notification still appears (including the previously immune Google apps too)</p>
  
  <p><img src="https://i.stack.imgur.com/8c16b.png" width="400" height="740"></p>
  
  <p>The behavior documentation makes no reference to this, its reasoning or how to prevent it. Other than not using a service any way to stop it?</p>