Merge "Support virtual device specific audio session in TTS." into udc-dev am:...

Merge "Support virtual device specific audio session in TTS." into udc-dev am: 0b263f79 am: 8754a105

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22463391



Change-Id: I25289344f06067a6ef3690e784df0542772300a5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>