Merge "Clear identity when releasing display resources." into udc-dev am: f38af45079

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

Change-Id: Ife720c5bbc31d4e01bb82463fa9edfa21ec0e316
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>