Merge "Add a test for starting the legacy VPN." am: 20c118c89d am: 84561026d0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1372896

Change-Id: Idc49c61cc0547cdabe37cfa19b685c2beeda473b
tree: dd3980f3d4e52804d16869a0d9b6a0edc5bd24dd
  1. core/
  2. services/
  3. tests/