Extracting NetLog inner classes into their own classes.

chrome/browser/extensions/api/dial/dial_service.h

Index: chrome/browser/extensions/api/dial/dial_service.h
diff --git a/chrome/browser/extensions/api/dial/dial_service.h b/chrome/browser/extensions/api/dial/dial_service.h
index b490eec3a1b8808b440026748fe3c6c6bc618cd8..fa9809e8f6e237510987ecefa7d9e0c4518c1a59 100644
--- a/chrome/browser/extensions/api/dial/dial_service.h
+++ b/chrome/browser/extensions/api/dial/dial_service.h
@@ -15,13 +15,14 @@
 #include "base/observer_list.h"
 #include "base/timer/timer.h"
 #include "net/base/ip_address.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_source.h"
 #include "net/udp/udp_socket.h"
 
 namespace net {
 class IOBuffer;
 class IPEndPoint;
 class StringIOBuffer;
+class NetLog;
 struct NetworkInterface;
 }
 
@@ -125,7 +126,7 @@ class DialServiceImpl : public DialService {
     // |bind_ip_address|.
     bool CreateAndBindSocket(const net::IPAddress& bind_ip_address,
                              net::NetLog* net_log,
-                             net::NetLog::Source net_log_source);
+                             net::NetLogSource net_log_source);
 
     // Sends a single discovery request |send_buffer| to |send_address|
     // over the socket.
@@ -244,7 +245,7 @@ class DialServiceImpl : public DialService {
   net::NetLog* const net_log_;
 
   // The NetLog source for this service.
-  net::NetLog::Source net_log_source_;
+  net::NetLogSource net_log_source_;
 
   // The multicast address:port for search requests.
   net::IPEndPoint send_address_;