Merge "PIP window cant be ime target." into rvc-dev am: 466a3e5bfa am: fab1b64f3f

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

Change-Id: I64630b87a0f9a9810637b3096c07de5f238af1d9