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

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



Change-Id: I95a4185369133c24bbb9f6637f7d59316b7cf0c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>