Merge "Merge "Check that activity is not in PIP mode already" into rvc-dev am:...

Merge "Merge "Check that activity is not in PIP mode already" into rvc-dev am: 3c987ead am: 8ba4ff40 am: 37336aba" into rvc-qpr-dev-plus-aosp am: 9b74a16f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11742412

Change-Id: If47f46a79002b9e1b3e495d83bf3284b3bd0b53f