Get most recent scan result

Add a method in ScanDetailCache to get the most recent ScanResult for a
WifiConfiguration. This will be needed in a later patch to findout which
networks need to be temporarily disabled when
startTemporarilyDisablingAllNonCarrierMergedWifi is called.
Also adds missing tests.

Bug: 173054916
Test: atest com.android.server.wifi

Change-Id: I8bf3bcd365936ec7282edd7630f10eec9237571b
2 files changed
tree: 5072b71b11bd86cc2cae6351ef87084e02e40fd6
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg