Merge "Don't move PiP if keyguard is showing or animating." into tm-qpr-dev...

Merge "Don't move PiP if keyguard is showing or animating." into tm-qpr-dev am: de264b42 am: 1057133c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22162541



Change-Id: I8757fc0e2ddf621b64e212b70641bef56e543cb7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>