Merge "PIP window cant be ime target." into rvc-dev am: 466a3e5bfa am: d8646ab62d am: 8eb257fe3b am: a9015a8c9d

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

Change-Id: Ic363d40d0d919bd82ad1a8386f5159426a351bfc