Merge "Rate limiting PiP aspect ratio change request" into tm-dev am: 4734d183dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/27266232

Change-Id: I6136ca770fb27a5898e3d2545177a73675f004f4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>