Currently, when another application ducks WebKit, there is no other way than to quit WebKit and restart it. By calling again audio ducking when starting the audio unit, this can be fixed by reloading the page instead of quitting the browser.
rdar://problem/33267368
Created attachment 315254 [details] Patch
Created attachment 315255 [details] Beefing up log
Comment on attachment 315255 [details] Beefing up log Clearing flags on attachment: 315255 Committed r219417: <http://trac.webkit.org/changeset/219417>
All reviewed patches have been landed. Closing bug.