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

net/socket/tcp_socket_win.h

Index: net/socket/tcp_socket_win.h
diff --git a/net/socket/tcp_socket_win.h b/net/socket/tcp_socket_win.h
index 63491f67f4c334f363c23ab8c6f190ea4037c3d0..ee92b44e766d5845d04d8e3710c4279f0efe04e3 100644
--- a/net/socket/tcp_socket_win.h
+++ b/net/socket/tcp_socket_win.h
@@ -99,9 +99,9 @@ class NET_EXPORT TCPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe),
   //
   // TCPClientSocket may attempt to connect to multiple addresses until it
   // succeeds in establishing a connection. The corresponding log will have
-  // multiple NetLog::TYPE_TCP_CONNECT_ATTEMPT entries nested within a
-  // NetLog::TYPE_TCP_CONNECT. These methods set the start/end of
-  // NetLog::TYPE_TCP_CONNECT.
+  // multiple NetLogEventType::TCP_CONNECT_ATTEMPT entries nested within a
+  // NetLogEventType::TCP_CONNECT. These methods set the start/end of
+  // NetLogEventType::TCP_CONNECT.
   //
   // TODO(yzshen): Change logging format and let TCPClientSocket log the
   // start/end of a series of connect attempts itself.