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

net/socket/transport_client_socket_pool_test_util.cc

Index: net/socket/transport_client_socket_pool_test_util.cc
diff --git a/net/socket/transport_client_socket_pool_test_util.cc b/net/socket/transport_client_socket_pool_test_util.cc
index 3dbffa61559e714dcc25085c5693c56bb3eea2e8..2577bc6de3f6a630113c28428818334a21d9cd9c 100644
--- a/net/socket/transport_client_socket_pool_test_util.cc
+++ b/net/socket/transport_client_socket_pool_test_util.cc
@@ -19,6 +19,7 @@
 #include "net/base/ip_endpoint.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/load_timing_info_test_util.h"
+#include "net/log/net_log_source_type.h"
 #include "net/socket/client_socket_handle.h"
 #include "net/socket/ssl_client_socket.h"
 #include "net/udp/datagram_client_socket.h"
@@ -40,7 +41,7 @@ class MockConnectClientSocket : public StreamSocket {
   MockConnectClientSocket(const AddressList& addrlist, net::NetLog* net_log)
       : connected_(false),
         addrlist_(addrlist),
-        net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) {}
+        net_log_(BoundNetLog::Make(net_log, NetLogSourceType::SOCKET)) {}
 
   // StreamSocket implementation.
   int Connect(const CompletionCallback& callback) override {
@@ -109,7 +110,7 @@ class MockFailingClientSocket : public StreamSocket {
  public:
   MockFailingClientSocket(const AddressList& addrlist, net::NetLog* net_log)
       : addrlist_(addrlist),
-        net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) {}
+        net_log_(BoundNetLog::Make(net_log, NetLogSourceType::SOCKET)) {}
 
   // StreamSocket implementation.
   int Connect(const CompletionCallback& callback) override {
@@ -179,7 +180,7 @@ class MockTriggerableClientSocket : public StreamSocket {
       : should_connect_(should_connect),
         is_connected_(false),
         addrlist_(addrlist),
-        net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)),
+        net_log_(BoundNetLog::Make(net_log, NetLogSourceType::SOCKET)),
         weak_factory_(this) {}
 
   // Call this method to get a closure which will trigger the connect callback