Store the QUIC server's crypto config expiration time explicitly in the client's CachedState, inste…

net/quic/core/crypto/quic_crypto_client_config.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_CRYPTO_QUIC_CRYPTO_CLIENT_CONFIG_H_
 #define NET_QUIC_CRYPTO_QUIC_CRYPTO_CLIENT_CONFIG_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 157 matching lines @@
     std::string server_config_;         // A serialized handshake message.
     std::string source_address_token_;  // An opaque proof of IP ownership.
     std::vector<std::string> certs_;    // A list of certificates in leaf-first
                                         // order.
     std::string cert_sct_;              // Signed timestamp of the leaf cert.
     std::string chlo_hash_;             // Hash of the CHLO message.
     std::string server_config_sig_;     // A signature of |server_config_|.
     bool server_config_valid_;          // True if |server_config_| is correctly
                                         // signed and |certs_| has been
                                         // validated.
+    QuicWallTime expiration_time_;      // Time when the config is no longer
+                                        // valid.
     // Generation counter associated with the |server_config_|, |certs_| and
     // |server_config_sig_| combination. It is incremented whenever we set
     // server_config_valid_ to false.
     uint64_t generation_counter_;
 
     std::unique_ptr<ProofVerifyDetails> proof_verify_details_;
 
     // scfg contains the cached, parsed value of |server_config|.
     mutable std::unique_ptr<CryptoHandshakeMessage> scfg_;
 
@@ skipping 198 matching lines @@
 
   // The |user_agent_id_| passed in QUIC's CHLO message.
   std::string user_agent_id_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoClientConfig);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_QUIC_CRYPTO_CLIENT_CONFIG_H_