Merge "Reduce PiP flickering when switch apps with orientation change" into udc-dev am: 4b4b8d7b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23370657



Change-Id: Ie01f8288877d437e4b0c0c3c30260f6e68a5263c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>