tree db3f6dcfa831944d8f535a451eb9e70aa64e583a
parent 5c3e1245e9caa9e259df8b3f555a0039c1d47425
author Hongwei Wang <hwwang@google.com> 1618512732 -0700
committer Hongwei Wang <hwwang@google.com> 1618512732 -0700

Deprecate ActivityRecord#mLastKnownParent

As a follow-up of ag/14143969

Bug: 184758170
Test: atest PinnedStackTests RootWindowContainerTests
Change-Id: I075757da5a8ed0a98c85ff3eb918aab03267d482