Use snake_case for Connection etc methods

src/http_handler.hpp

@@ -79,7 +79,7 @@ struct HttpHandler : ConnectionHandler {
               auto *state = static_cast<HttpConnectionState *>(c->user_data);
               TRACE_EVENT("http", "pipeline thread",
                           perfetto::Flow::Global(state->request_id));
-              Server::releaseBackToServer(std::move(c));
+              Server::release_back_to_server(std::move(c));
             }
           }
         }