Merge "Move shared Proxy method and constants to shared lib" am: c42519e903 am: 067b92e2a7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1574816

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0a12cbd0101d6cc637f87e524713ba5056ac6e01