LibWebView+ImageDecoder+RequestServer+WebContent: Add init_transport

Author: https://github.com/stasoid
Commit: 3e46cb9067
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3179
Reviewed-by: https://github.com/ADKaster ✅

Libraries/LibRequests/RequestClient.h

@@ -24,6 +24,8 @@ class RequestClient final
     C_OBJECT_ABSTRACT(RequestClient)
 
 public:
+    using InitTransport = Messages::RequestServer::InitTransport;
+
     explicit RequestClient(IPC::Transport);
     virtual ~RequestClient() override;