Merge "Audio focus: no "strong duck" for navigation use case" into udc-dev am: 2cdaf2f5 am: 3cf6c34c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23666670



Change-Id: I019122630e0a0b5232e9b18d067f59559a2bd9cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>