Merge "Show toast if split enter failed" into udc-dev am: 9cbda8fe

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23443364



Change-Id: I72a81daf0d9e7166a9a11a92f14badda9a02cfef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>