Extracting NetLog inner classes into their own classes.

net/socket/socks_client_socket_pool_unittest.cc

Index: net/socket/socks_client_socket_pool_unittest.cc
diff --git a/net/socket/socks_client_socket_pool_unittest.cc b/net/socket/socks_client_socket_pool_unittest.cc
index 5827c99fb32a093f7a7065bc18a363dc44ff98d8..5331739b0076d169bdd94148bc2b43d88586ef93 100644
--- a/net/socket/socks_client_socket_pool_unittest.cc
+++ b/net/socket/socks_client_socket_pool_unittest.cc
@@ -13,6 +13,8 @@
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "net/dns/mock_host_resolver.h"
+#include "net/log/net_log_source.h"
+#include "net/log/net_log_with_source.h"
 #include "net/socket/client_socket_factory.h"
 #include "net/socket/client_socket_handle.h"
 #include "net/socket/socket_test_util.h"
@@ -37,7 +39,7 @@ void TestLoadTimingInfo(const ClientSocketHandle& handle) {
   EXPECT_TRUE(handle.GetLoadTimingInfo(false, &load_timing_info));
 
   // None of these tests use a NetLog.
-  EXPECT_EQ(NetLog::Source::kInvalidId, load_timing_info.socket_log_id);
+  EXPECT_EQ(NetLogSource::kInvalidId, load_timing_info.socket_log_id);
 
   EXPECT_FALSE(load_timing_info.socket_reused);