Add public alternative for protectFromVpn

The method is called directly by VpnService#protect.

Bug: 171540887
Test: m
Change-Id: I7cbb1ef1301dcf8d27b2cc39c0431a0156fe3442
1 file changed
tree: bfffddf137a9878a4cd425dcb463a10b02abcd47
  1. framework/
  2. service/
  3. OWNERS