Fix build

Change-Id: Id17b70154b3f8a101457b20fb37db0a16159dff9

Author: isheriff

core/java/android/net/BaseNetworkStateTracker.java

@@ -95,6 +95,11 @@ public final LinkCapabilities getLinkCapabilities() {
         return new LinkCapabilities(mLinkCapabilities);
     }
 
+    @Override
+    public void captivePortalCheckComplete() {
+        // not implemented
+    }
+
     @Override
     public boolean setRadio(boolean turnOn) {
         // Base tracker doesn't handle radios