Merge "Allow IME to register callbacks with negative priorities." into tm-qpr-dev am: 77bef7e1d5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20766528

Change-Id: If1f98148d0b1457fab3ea1852113e8f387e58807
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>