Fix object-lifetime issues in async GetProof callpaths

net/quic/test_tools/crypto_test_utils.h

 // Copyright (c) 2012 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_TEST_TOOLS_CRYPTO_TEST_UTILS_H_
 #define NET_QUIC_TEST_TOOLS_CRYPTO_TEST_UTILS_H_
 
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
@@ skipping 201 matching lines @@
       QuicCryptoServerConfig* crypto_config);
 
   // Takes a inchoate CHLO, returns a full CHLO in |out| which can pass
   // |crypto_config|'s validation.
   static void GenerateFullCHLO(const CryptoHandshakeMessage& inchoate_chlo,
                                QuicCryptoServerConfig* crypto_config,
                                IPAddress server_ip,
                                IPEndPoint client_addr,
                                QuicVersion version,
                                const QuicClock* clock,
-                               QuicCryptoProof* proof,
+                               scoped_refptr<QuicCryptoProof> proof,
                                QuicCompressedCertsCache* compressed_certs_cache,
                                CryptoHandshakeMessage* out);
 
  private:
   static void CompareClientAndServerKeys(QuicCryptoClientStream* client,
                                          QuicCryptoServerStream* server);
 
   // Return a CHLO nonce in hexadecimal.
   static std::string GenerateClientNonceHex(
       const QuicClock* clock,
       QuicCryptoServerConfig* crypto_config);
 
   // Return a CHLO PUBS in hexadecimal.
   static std::string GenerateClientPublicValuesHex();
 
   DISALLOW_COPY_AND_ASSIGN(CryptoTestUtils);
 };
 
 }  // namespace test
 
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_CRYPTO_TEST_UTILS_H_