Merge "Clean up some methods on the Pip interface" into tm-qpr-dev am: ddc26a33 am: 9ab3a24c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20106676



Change-Id: Ibba2686645c4b9bafe5fbff59a1fa26e4a8bcd61
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>