Merge "Allow pip screen size to toggle on double tap" into tm-qpr-dev am: 491e471d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19906482



Change-Id: Ic049d05cd79ec7c70497b7d3e8acc51aec1eb8a4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>