Merge "Propagate last-ime-shown in the same task explicitly" into udc-dev am: 3109c3b7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23350556



Change-Id: I8248df2a56d2b30aa45fa03894f09fddb3f68149
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>