Merge "Tv PiP: allow launcher to identify custom actions." into udc-dev am: f14d97df am: 1839cfbb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22335689



Change-Id: I68ac59418daccce47079fc9c20db535ae87d6690
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>