Change namespace of DummyClientFace, Signal, Segmenter, SegmentFetcher

refs #3940

Change-Id: Ia3c9b4adcca9ff79a14be705ca9da525914f3dff
diff --git a/src/lsdb.cpp b/src/lsdb.cpp
index 9467870..876fa57 100644
--- a/src/lsdb.cpp
+++ b/src/lsdb.cpp
@@ -438,13 +438,12 @@
   if (incomingFaceId != 0) {
     interest.setTag(std::make_shared<ndn::lp::NextHopFaceIdTag>(incomingFaceId));
   }
-  ndn::util::SegmentFetcher::Options options;
+  ndn::SegmentFetcher::Options options;
   options.interestLifetime = m_confParam.getLsaInterestLifetime();
   options.maxTimeout = m_confParam.getLsaInterestLifetime();
 
   NLSR_LOG_DEBUG("Fetching Data for LSA: " << interestName << " Seq number: " << seqNo);
-  auto fetcher = ndn::util::SegmentFetcher::start(m_face, interest,
-                                                  m_confParam.getValidator(), options);
+  auto fetcher = ndn::SegmentFetcher::start(m_face, interest, m_confParam.getValidator(), options);
 
   auto it = m_fetchers.insert(fetcher).first;
 
@@ -493,7 +492,7 @@
       // the potential for constant Interest flooding.
       ndn::time::seconds delay = m_confParam.getLsaInterestLifetime();
 
-      if (errorCode == ndn::util::SegmentFetcher::ErrorCode::INTEREST_TIMEOUT) {
+      if (errorCode == ndn::SegmentFetcher::ErrorCode::INTEREST_TIMEOUT) {
         delay = ndn::time::seconds(0);
       }
       m_scheduler.schedule(delay, std::bind(&Lsdb::expressInterest, this,