Add ability to override subscriber capabilities.

In a future set of CLs, NPMS will offer to override a handful of
capabilities on a per-subId basis.  Define a no-op version of the
interface to make it easier to add new methods in the future.

Test: bit FrameworksNetTests:android.net.,com.android.server.net.
Test: bit FrameworksTelephonyTests:com.android.internal.telephony.dataconnection.DataConnectionTest
Bug: 64133169
Change-Id: I03dfd98463861f0338c4174e8d8a88c300ea5b55

services/core/java/com/android/server/ConnectivityService.java

@@ -63,6 +63,7 @@ import android.net.NetworkConfig;
 import android.net.NetworkInfo;
 import android.net.NetworkInfo.DetailedState;
 import android.net.NetworkMisc;
+import android.net.NetworkPolicyManager;
 import android.net.NetworkQuotaInfo;
 import android.net.NetworkRequest;
 import android.net.NetworkSpecifier;
@@ -1478,15 +1479,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
         return true;
     }
 
-    private final INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() {
+    private final INetworkPolicyListener mPolicyListener = new NetworkPolicyManager.Listener() {
         @Override
         public void onUidRulesChanged(int uid, int uidRules) {
             // TODO: notify UID when it has requested targeted updates
         }
         @Override
-        public void onMeteredIfacesChanged(String[] meteredIfaces) {
-        }
-        @Override
         public void onRestrictBackgroundChanged(boolean restrictBackground) {
             // TODO: relocate this specific callback in Tethering.
             if (restrictBackground) {
@@ -1494,9 +1492,6 @@ public class ConnectivityService extends IConnectivityManager.Stub
                 mTethering.untetherAll();
             }
         }
-        @Override
-        public void onUidPoliciesChanged(int uid, int uidPolicies) {
-        }
     };
 
     /**