Slice enum HttpResponseInfo::ConnectionInfo by QUIC version.

net/quic/chromium/quic_chromium_client_session.h

Index: net/quic/chromium/quic_chromium_client_session.h
diff --git a/net/quic/chromium/quic_chromium_client_session.h b/net/quic/chromium/quic_chromium_client_session.h
index 0045912eae44358ad6d15410824678f7b164dcf7..b17343aac1fe15f1cecc969956171abf463449fd 100644
--- a/net/quic/chromium/quic_chromium_client_session.h
+++ b/net/quic/chromium/quic_chromium_client_session.h
@@ -68,6 +68,7 @@ class NET_EXPORT_PRIVATE QuicChromiumClientSession
    public:
     virtual ~Observer() {}
     virtual void OnCryptoHandshakeConfirmed() = 0;
+    virtual void OnSuccessfulVersionNegotiation(const QuicVersion& version) = 0;
     virtual void OnSessionClosed(int error, bool port_migration_detected) = 0;
   };
 
@@ -311,6 +312,8 @@ class NET_EXPORT_PRIVATE QuicChromiumClientSession
 
   const LoadTimingInfo::ConnectTiming& GetConnectTiming();
 
+  QuicVersion GetQuicVersion() const;
+
  protected:
   // QuicSession methods:
   bool ShouldCreateIncomingDynamicStream(QuicStreamId id) override;