Merge "Redesign the ContextMenu to meet matrial spec" into udc-dev am: 578a00a9 am: 778c18d8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22216505



Change-Id: I06dedea972764cbf33de3aac29d322c70d387f4a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>