Merge "Detect Remove-pip transaction to properly close multi-activity pips"...

Merge "Detect Remove-pip transaction to properly close multi-activity pips" into tm-qpr-dev am: 17f142d9 am: 488aceb6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18447453



Change-Id: I984cf2b8fae7f3e18775928b5a30768df351b57e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>