Merge "Remove Preconditions usage in TestNetworkSpecifier" am: afdb6a7347 am: 6a4a9423ef

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1644991

Change-Id: Id66ea1eda381be3b42a3ccf553d831d49b5fb7b7
tree: 11e745fc5e72bdfa2625578f5bb28c0c23325002
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS
  7. TEST_MAPPING