[automerger skipped] Merge "Check for null when getting PiP action item...

[automerger skipped] Merge "Check for null when getting PiP action item drawables." into rvc-qpr-dev am: 369ecdd8 am: dcd3e8b4 -s ours

am skip reason: Change-Id Iff2b7d499cee275294075a37a4970dc2dbc97401 with SHA-1 e09e8e8a is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12664466

Change-Id: I30a85a68b380c7e442d3ca7930bcd6ddcbba60c8