Merge "Allow dev tools to suppress clipboard overlay." into tm-dev am: 627b6b9c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18205875



Change-Id: If3e3d0ed3a9bcf4e86b71a25d44022d35cd627e8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>