Merge "PiP: Potentially hide menu immediately after it appears." into rvc-dev am: 4757e892 am: 9a056393 am: 0e61d5a5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11710013

Change-Id: I58b1be855829b0b4250bada59980eb814ff58809