Merge "PIP window cant be ime target." into rvc-dev am: 466a3e5bfa am: d8646ab62d am: 8eb257fe3b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11604119

Change-Id: Ia7e4fbdf11495a5df3bb74da6b70e1607b939bd0