Merge changes from topic "restricted-networking-mode" am: 1d156cb04e am: 83711b9a0b am: 5fda0bd0af

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1505234

Change-Id: Ia175efd2e152ea4b04feddf3bdc159adca2edab5
tree: 42f81ce85bf532400750b0117210e8b0f18f876b
  1. core/
  2. services/
  3. tests/