Merge "Do not redraw if no change on reparent" into udc-dev am: d53107bdd3 am: 169d875c22 am: 8d00504fc2 am: 072fc89316

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23083577

Change-Id: I89b14a6728cd05175fcf26265f486f36da97bbb1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>