Merge "Add NetworkRequest.Builder creating from an existing instance" am: 08bebe4609 am: eefea38ae5

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1649294

Change-Id: I96516eb0d976d6e6250d2e96c316c560bfa21ab5
tree: 5498b91e44f703be8601dc7081cba28f709a03b8
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS
  7. TEST_MAPPING