Example URL:
BBC News

Steps to reproduce the problem:
1. Play some audio from an Android app (Spotify for example)
2. Go to a BBC news article
3. Scroll such that a video ad is display and starts playing

What is the expected behavior?
I can carry on listening to music uninterrupted

What went wrong?
The video shows a notification and causes the audio of Spotify to stop

Did this work before? N/A 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? N/A

Chrome version: 67.0.3396.87  Channel: stable
OS Version: 
Flash Version: 

Contents of chrome://gpu: