[automerger skipped] Merge "Persist destroyed staged sessions until they are cleaned up" into qt-dev am: 30348d5cdc am: ca4faab256 -s ours am: 18651732ad -s ours am: 467ac2a3cf -s ours am: 810c1dd578 -s ours

am skip reason: Merged-In I4ede6b7a4b5d861e5c73f13884c7aa86cf7633a2 with SHA-1 731bd965fb is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16575908

Change-Id: I6886857954d3d0f9e2d90ad8cb48a4daf53d5f5b