Extracting NetLog inner classes into their own classes.

chrome/browser/printing/cloud_print/privet_traffic_detector.cc

Index: chrome/browser/printing/cloud_print/privet_traffic_detector.cc
diff --git a/chrome/browser/printing/cloud_print/privet_traffic_detector.cc b/chrome/browser/printing/cloud_print/privet_traffic_detector.cc
index 672410fcf509dfc03ec46f548857a2ed5d2ff3b5..a72e563931729da62b0be84d1d66768a00348e8b 100644
--- a/chrome/browser/printing/cloud_print/privet_traffic_detector.cc
+++ b/chrome/browser/printing/cloud_print/privet_traffic_detector.cc
@@ -18,7 +18,7 @@
 #include "net/dns/dns_protocol.h"
 #include "net/dns/dns_response.h"
 #include "net/dns/mdns_client.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_source.h"
 #include "net/udp/datagram_server_socket.h"
 #include "net/udp/udp_server_socket.h"
 
@@ -131,7 +131,7 @@ int PrivetTrafficDetector::Bind() {
   }
   start_time_ = base::Time::Now();
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
-  socket_.reset(new net::UDPServerSocket(NULL, net::NetLog::Source()));
+  socket_.reset(new net::UDPServerSocket(NULL, net::NetLogSource()));
   net::IPEndPoint multicast_addr = net::GetMDnsIPEndPoint(address_family_);
   net::IPEndPoint bind_endpoint(
       net::IPAddress::AllZeros(multicast_addr.address().size()),