Merge "[DO NOT MERGE] Add centralized DisplayTracker for SystemUI" into tm-qpr-dev am: 690c929811

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20933129

Change-Id: I6c7bfcdebbe428bc1da4c2ce4b952d1192881f91
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>