fw: add strategy notification for Interests dropped by LpReliability

add dropped Interest counter to faces

refs #3823

Change-Id: I9910b66932d74383203e8f3732bb45cade83b972
diff --git a/daemon/face/link-service.cpp b/daemon/face/link-service.cpp
index 00dd6f0..9b05c2a 100644
--- a/daemon/face/link-service.cpp
+++ b/daemon/face/link-service.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -114,6 +114,13 @@
   afterReceiveNack(nack);
 }
 
+void
+LinkService::notifyDroppedInterest(const Interest& interest)
+{
+  ++this->nDroppedInterests;
+  onDroppedInterest(interest);
+}
+
 std::ostream&
 operator<<(std::ostream& os, const FaceLogHelper<LinkService>& flh)
 {