Merge "Consider IME_VISIBLE_IMPERCEPTIBLE as shown for taskbar purposes" into sc-v2-dev am: 7aa0c3f9ee

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16323570

Change-Id: Ib6501fdff832c049c2102630b2ff5eaf374deb2a