Merge "Run inflations of UMO in a background thread" into tm-qpr-dev am: 69ce1098

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21448725



Change-Id: I141819553a9b5b94bb169d1901e3e1343660e035
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>