src: Global renaming ContentObject -> Data
diff --git a/apps/ndn-consumer.h b/apps/ndn-consumer.h
index baa6ba3..eea5fda 100644
--- a/apps/ndn-consumer.h
+++ b/apps/ndn-consumer.h
@@ -64,7 +64,7 @@
   OnNack (Ptr<const Interest> interest);
 
   virtual void
-  OnContentObject (Ptr<const ContentObject> contentObject);
+  OnData (Ptr<const Data> contentObject);
 
   /**
    * @brief Timeout event