Merge "Use drop shadow for screenshots instead of scrim" into tm-dev am: 75cfd645 am: 7e9f4828

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18122037



Change-Id: I527e56fc356d6f64e666fe664143623f20ce850b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>