change scope of additionalCommands to protected

Author: navin772

java/src/org/openqa/selenium/remote/HttpCommandExecutor.java

@@ -46,7 +46,7 @@ public class HttpCommandExecutor implements CommandExecutor, NeedsLocalLogs {
   private final URL remoteServer;
   public final HttpClient client;
   private final HttpClient.Factory httpClientFactory;
-  private final Map<String, CommandInfo> additionalCommands;
+  protected final Map<String, CommandInfo> additionalCommands;
   protected CommandCodec<HttpRequest> commandCodec;
   protected ResponseCodec<HttpResponse> responseCodec;