Merge "Prevent multiple handle menus from opening." into udc-dev am: 0352f602

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22499500



Change-Id: I69a6e0f4282eec67e7a28934e03258e3e2dfc2b8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>