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

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



Change-Id: Ia69c10f984c2b080b7c74661096af592d38a81c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>