[automerger skipped] Disallow enter PiP when starting a split task am: 91b2ab8249 -s ours

am skip reason: Merged-In Idceebc9742f45d17ebe5398df2c151085d33c775 with SHA-1 c46fae34dd is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/27791825

Change-Id: Ida97265241e258b55409b66fe900af04c5d92e42
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>