Merge "Show toast if split enter failed" into udc-dev am: 9cbda8fe am: 2cee16d9

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



Change-Id: I4c0e8b8a62899d1e2d33b47efdf0fdd6b23b151f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>