The monolithic EthernetStateListener has been refactored and split
into two specialized test classes:
- TestInterfaceStateListener: For interface state callbacks.
- TestEthernetStateListener: For ethernet state callbacks.
Both new classes now extend TestableCallback, providing a standardized
and more robust way to manage and verify listener interactions in
unit tests. This improves testability and clarity of test code.
This is a no-op, test-only change.
Flag: EXEMPT refactor
Test: atest CtsNetTestCases:android.net.cts.EthernetManagerTest
Bug: 410731080
Change-Id: I667e3607954dcb073b2732b16bedfbc71a70bb39
4c7ba24f57