Extracting NetLog inner classes into their own classes.

net/base/address_list.h

Index: net/base/address_list.h
diff --git a/net/base/address_list.h b/net/base/address_list.h
index c87add8d5eac52ab1432966620dcf0b1a3d2791a..d2a13abc9111804e0a1f24e989d1277bf3bea6d7 100644
--- a/net/base/address_list.h
+++ b/net/base/address_list.h
@@ -13,7 +13,7 @@
 #include "base/compiler_specific.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_export.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_parameters_callback.h"
 
 struct addrinfo;
 
@@ -55,7 +55,7 @@ class NET_EXPORT AddressList {
   // Creates a callback for use with the NetLog that returns a Value
   // representation of the address list.  The callback must be destroyed before
   // |this| is.
-  NetLog::ParametersCallback CreateNetLogCallback() const;
+  NetLogParametersCallback CreateNetLogCallback() const;
 
   using iterator = std::vector<IPEndPoint>::iterator;
   using const_iterator = std::vector<IPEndPoint>::const_iterator;