Merge "Create transition when converting an Activity to translucent" into...

Merge "Create transition when converting an Activity to translucent" into udc-dev am: cf71476f am: 1200556f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22779397



Change-Id: Icdb0ddec6bcec14759968724791ef97ab5ed7088
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>