Compilation fixes after upgrade to NFD 0.6.6 and removal of old-style CS

Change-Id: I5472ae71675d8419d8d6c70990182ef028803087
diff --git a/examples/ndn-load-balancer/random-load-balancer-strategy.hpp b/examples/ndn-load-balancer/random-load-balancer-strategy.hpp
index ef11ae8..1a2e2c0 100644
--- a/examples/ndn-load-balancer/random-load-balancer-strategy.hpp
+++ b/examples/ndn-load-balancer/random-load-balancer-strategy.hpp
@@ -38,10 +38,11 @@
 public:
   RandomLoadBalancerStrategy(Forwarder& forwarder, const Name& name = getStrategyName());
 
-  virtual ~RandomLoadBalancerStrategy() override;
+  virtual
+  ~RandomLoadBalancerStrategy() override;
 
-  virtual void
-  afterReceiveInterest(const Face& inFace, const Interest& interest,
+  void
+  afterReceiveInterest(const FaceEndpoint& ingress, const Interest& interest,
                        const shared_ptr<pit::Entry>& pitEntry) override;
 
   static const Name&