Fix object-lifetime issues in async GetProof callpaths

net/quic/core/quic_crypto_server_stream.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_QUIC_CRYPTO_SERVER_STREAM_H_
 #define NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_
 
 #include <cstdint>
 #include <memory>
 #include <string>
@@ skipping 193 matching lines @@
 
   // crypto_config_ contains crypto parameters for the handshake.
   const QuicCryptoServerConfig* crypto_config_;
 
   // compressed_certs_cache_ contains a set of most recently compressed certs.
   // Owned by QuicDispatcher.
   QuicCompressedCertsCache* compressed_certs_cache_;
 
   // Server's certificate chain and signature of the server config, as provided
   // by ProofSource::GetProof.
-  QuicCryptoProof crypto_proof_;
+  scoped_refptr<QuicCryptoProof> crypto_proof_;
 
   // Hash of the last received CHLO message which can be used for generating
   // server config update messages.
   std::string chlo_hash_;
 
   // Pointer to the active callback that will receive the result of
   // the client hello validation request and forward it to
   // FinishProcessingHandshakeMessage for processing.  nullptr if no
   // handshake message is being validated.
   ValidateCallback* validate_client_hello_cb_;
@@ skipping 33 matching lines @@
 
   // Set to true, once the server has received information from the
   // client that it supports stateless reject.
   //  TODO(jokulik): Remove once client stateless reject support
   // becomes the default.
   bool peer_supports_stateless_rejects_;
 
   // Size of the packet containing the most recently received CHLO.
   QuicByteCount chlo_packet_size_;
 
+  // Pointer to the active callback which will receive the results of
+  // ProcessClientHello and forward it to
+  // FinishProcessingHandshakeMessageAfterProcessClientHello.
+  ProcessClientHelloCallback* process_client_hello_cb_;
+
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoServerStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_