Extracted NetLog class's inner enum types into their own enum classes and

net/socket/fuzzed_socket.cc

Index: net/socket/fuzzed_socket.cc
diff --git a/net/socket/fuzzed_socket.cc b/net/socket/fuzzed_socket.cc
index 79c0bcf6bcda3f3ce39fdaeada59a9a7729863c1..0177c83b0a4b35e5747f8458f74fb249a74597ae 100644
--- a/net/socket/fuzzed_socket.cc
+++ b/net/socket/fuzzed_socket.cc
@@ -12,6 +12,7 @@
 #include "base/test/fuzzed_data_provider.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "net/base/io_buffer.h"
+#include "net/log/net_log_source_type.h"
 
 namespace net {
 
@@ -35,7 +36,7 @@ const Error kReadWriteErrors[] = {ERR_CONNECTION_CLOSED, ERR_FAILED,
 FuzzedSocket::FuzzedSocket(base::FuzzedDataProvider* data_provider,
                            net::NetLog* net_log)
     : data_provider_(data_provider),
-      bound_net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)),
+      bound_net_log_(BoundNetLog::Make(net_log, NetLogSourceType::SOCKET)),
       remote_address_(IPEndPoint(IPAddress::IPv4Localhost(), 80)),
       weak_factory_(this) {}