Reland "Add an API to listen for changes in network blocked status of an uid."

This reverts commit d88174dafd3f31c105601c84f10211299c8ac6ea.

Reason for revert: The issue causing the build breakage has been fixed

Change-Id: I03fa406551b51aaa4d4d9255cf1a53f9b4bcc1bd
Merged-In: Ib9949b8619c6b148f73630b314c4113d76c31ec1
2 files changed
tree: 4a62fa51d44cbdd25044a26f7084831642e3f789
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS