Merge "Register clipboard toast callback correctly" into udc-dev am: 39db20dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22162725



Change-Id: Ie3d4a47de55affbc23b0a88ffc5da5859a4b9e68
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>