Merge "Fix pip window can't move in recents" into tm-dev am: 4a8619ce am:...

Merge "Fix pip window can't move in recents" into tm-dev am: 4a8619ce am: af60c8fc am: 49a4ed15

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18157814



Change-Id: I1c4e316eca7a91217ec356b226f1e123f199ba8e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>