Merge "Invalidate autofill session on IME disconnect" into tm-dev am: c17eae26

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18646671



Change-Id: I1a01f02047a63938a005ca57f12358a09ebbd968
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>