Configure supported QUIC versions in HQConnector

Summary: As in title

Reviewed By: mjoras

Differential Revision: D51504726

fbshipit-source-id: 5e0b6787ebf8dcdf23b67a657ad6e209b4606c93

Author: afrind

proxygen/lib/http/HQConnector.cpp

@@ -83,6 +83,9 @@ void HQConnector::connect(
   // Always use connected UDP sockets
   transportSettings_.connectUDP = true;
   quicClient->setTransportSettings(transportSettings_);
+  if (!quicVersions_.empty()) {
+    quicClient->setSupportedVersions(quicVersions_);
+  }
   quicClient->setQLogger(std::move(qLogger));
   quicClient->setLoopDetectorCallback(std::move(quicLoopDetectorCallback));
   quicClient->setSocketOptions(socketOptions);

proxygen/lib/http/HQConnector.h

@@ -49,6 +49,10 @@ class HQConnector : public HQSession::ConnectCallback {
   }
 
   void setTransportSettings(quic::TransportSettings transportSettings);
+  void setSupportedQuicVersions(
+      const std::vector<quic::QuicVersion>& versions) {
+    quicVersions_ = versions;
+  }
   void setH3Settings(SettingsList settings) {
     h3Settings_ = std::move(settings);
   }
@@ -88,6 +92,7 @@ class HQConnector : public HQSession::ConnectCallback {
   TimePoint connectStart_;
   HQUpstreamSession* session_{nullptr};
   quic::TransportSettings transportSettings_;
+  std::vector<quic::QuicVersion> quicVersions_;
   folly::Optional<SettingsList> h3Settings_;
   std::shared_ptr<quic::QuicPskCache> quicPskCache_;
   bool useConnectionEndWithErrorCallback_{false};