Update from https://crrev.com/303153

net/quic/crypto/quic_crypto_server_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_SERVER_CONFIG_H_
 #define NET_QUIC_CRYPTO_QUIC_CRYPTO_SERVER_CONFIG_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 308 matching lines @@
   // set_server_nonce_strike_register_window_secs sets the number of seconds
   // around the current time that the server-nonce strike-register will accept
   // nonces from. Setting a larger value allows for clients to delay follow-up
   // client hellos for longer and still use server nonces as proofs of
   // uniqueness.
   void set_server_nonce_strike_register_window_secs(uint32 window_secs);
 
   // Set and take ownership of the callback to invoke on primary config changes.
   void AcquirePrimaryConfigChangedCb(PrimaryConfigChangedCallback* cb);
 
+  // Returns true if this config has a |proof_source_|.
+  bool HasProofSource() const;
+
  private:
   friend class test::QuicCryptoServerConfigPeer;
 
   // Config represents a server config: a collection of preferences and
   // Diffie-Hellman public values.
   class NET_EXPORT_PRIVATE Config : public QuicCryptoConfig,
                                     public base::RefCounted<Config> {
    public:
     Config();
 
@@ skipping 189 matching lines @@
   uint32 source_address_token_lifetime_secs_;
   uint32 server_nonce_strike_register_max_entries_;
   uint32 server_nonce_strike_register_window_secs_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoServerConfig);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_QUIC_CRYPTO_SERVER_CONFIG_H_