Merge "Fix a NPE in InputMonitor#updateInputFocusRequest" into udc-dev am: 6979ba42

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23160490



Change-Id: Ib116649197c5e1fc19ce4a96ac58ac87d07b8660
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>