Update from https://crrev.com/305340

net/quic/quic_crypto_server_stream.h

Index: net/quic/quic_crypto_server_stream.h
diff --git a/net/quic/quic_crypto_server_stream.h b/net/quic/quic_crypto_server_stream.h
index 09d9bd8809557001a0cf1e04f44785507ef37c02..f88affeed9704aebdf0db9a497e993f326201f5f 100644
--- a/net/quic/quic_crypto_server_stream.h
+++ b/net/quic/quic_crypto_server_stream.h
@@ -82,6 +82,8 @@ class NET_EXPORT_PRIVATE QuicCryptoServerStream : public QuicCryptoStream {
   void set_previous_cached_network_params(
       CachedNetworkParameters cached_network_params);
 
+  const CachedNetworkParameters* previous_cached_network_params() const;
+
  protected:
   virtual QuicErrorCode ProcessClientHello(
       const CryptoHandshakeMessage& message,
@@ -93,8 +95,6 @@ class NET_EXPORT_PRIVATE QuicCryptoServerStream : public QuicCryptoStream {
   // before going through the parameter negotiation step.
   virtual void OverrideQuicConfigDefaults(QuicConfig* config);
 
-  CachedNetworkParameters* get_previous_cached_network_params();
-
  private:
   friend class test::CryptoTestUtils;