tests: Use ndn-cxx/DummyClientFace

refs: #2637

Change-Id: Ife16a81d08e538b4b0a82f1f5d4cc819fc764257
diff --git a/tests/update/test-prefix-update-processor.cpp b/tests/update/test-prefix-update-processor.cpp
index 9a12931..f93ee75 100644
--- a/tests/update/test-prefix-update-processor.cpp
+++ b/tests/update/test-prefix-update-processor.cpp
@@ -43,7 +43,7 @@
 {
 public:
   PrefixUpdateFixture()
-    : face(ndn::util::makeDummyClientFace(g_ioService))
+    : face(make_shared<ndn::util::DummyClientFace>(g_ioService))
     , siteIdentity(ndn::Name("/ndn/edu/test-site").appendVersion())
     , opIdentity(ndn::Name(siteIdentity).append(ndn::Name("%C1.Operator")).appendVersion())
     , nlsr(g_ioService, g_scheduler, *face)