[Modify] Move it out

websocket-sharp/WebSocket.cs

@@ -2773,16 +2773,16 @@ namespace WebSocketSharp
         return;
       }
 
-      lock (_forConn) {
-        if (!checkIfAvailable (true, false, false, true, out msg)) {
-          _logger.Error (msg);
+      if (cookie == null) {
+        _logger.Error ("'cookie' is null.");
         error ("An error has occurred in setting a cookie.", null);
 
         return;
       }
 
-        if (cookie == null) {
-          _logger.Error ("'cookie' is null.");
+      lock (_forConn) {
+        if (!checkIfAvailable (true, false, false, true, out msg)) {
+          _logger.Error (msg);
           error ("An error has occurred in setting a cookie.", null);
 
           return;