nghttpx: Compile with the latest nghttp3

src/shrpx_http3_upstream.cc

@@ -1784,7 +1784,7 @@ int http_deferred_consume(nghttp3_conn *conn, int64_t stream_id,
 
 namespace {
 int http_acked_stream_data(nghttp3_conn *conn, int64_t stream_id,
-                           size_t datalen, void *user_data,
+                           uint64_t datalen, void *user_data,
                            void *stream_user_data) {
   auto upstream = static_cast<Http3Upstream *>(user_data);
   auto downstream = static_cast<Downstream *>(stream_user_data);
@@ -1800,7 +1800,7 @@ int http_acked_stream_data(nghttp3_conn *conn, int64_t stream_id,
 } // namespace
 
 int Http3Upstream::http_acked_stream_data(Downstream *downstream,
-                                          size_t datalen) {
+                                          uint64_t datalen) {
   if (LOG_ENABLED(INFO)) {
     ULOG(INFO, this) << "Stream " << downstream->get_stream_id() << " "
                      << datalen << " bytes acknowledged";

src/shrpx_http3_upstream.h

@@ -137,7 +137,7 @@ public:
   int stream_close(int64_t stream_id, uint64_t app_error_code);
   void log_response_headers(Downstream *downstream,
                             const std::vector<nghttp3_nv> &nva) const;
-  int http_acked_stream_data(Downstream *downstream, size_t datalen);
+  int http_acked_stream_data(Downstream *downstream, uin64_t datalen);
   int http_shutdown_stream_read(int64_t stream_id);
   int http_reset_stream(int64_t stream_id, uint64_t app_error_code);
   int http_send_stop_sending(int64_t stream_id, uint64_t app_error_code);