Merge "Fix race of releasing leashes with shell recents transition" into...

Merge "Fix race of releasing leashes with shell recents transition" into tm-qpr-dev am: 456f79de am: e3773188

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19201346



Change-Id: Iead17ae16a7cd3b70484995eb2c76d3116133ace
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>