Merge "Clear identity when releasing display resources." into udc-dev am:...

Merge "Clear identity when releasing display resources." into udc-dev am: f38af450 am: 816308af am: 24a772e9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23588842



Change-Id: Id14b408851e9137e493a2aff5843257bf7f7cde4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>