Refactors for server-side asynchronous handshakes

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 107 matching lines @@
   int NumServerConfigUpdateMessagesSent() const override;
   const CachedNetworkParameters* PreviousCachedNetworkParams() const override;
   bool UseStatelessRejectsIfPeerSupported() const override;
   bool PeerSupportsStatelessRejects() const override;
   void SetPeerSupportsStatelessRejects(
       bool peer_supports_stateless_rejects) override;
   void SetPreviousCachedNetworkParams(
       CachedNetworkParameters cached_network_params) override;
 
  protected:
-  virtual QuicErrorCode ProcessClientHello(
+  virtual void ProcessClientHello(
       scoped_refptr<ValidateClientHelloResultCallback::Result> result,
       std::unique_ptr<ProofSource::Details> proof_source_details,
-      CryptoHandshakeMessage* reply,
-      DiversificationNonce* out_diversification_nonce,
-      std::string* error_details);
+      std::unique_ptr<ProcessClientHelloResultCallback> done_cb);
 
   // Hook that allows the server to set QuicConfig defaults just
   // before going through the parameter negotiation step.
   virtual void OverrideQuicConfigDefaults(QuicConfig* config);
 
  private:
   friend class test::CryptoTestUtils;
   friend class test::QuicCryptoServerStreamPeer;
 
   class ValidateCallback : public ValidateClientHelloResultCallback {
@@ skipping 122 matching lines @@
 
   // Size of the packet containing the most recently received CHLO.
   QuicByteCount chlo_packet_size_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoServerStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_