Change QuicStreamRequest::Request() to take a preferred QuicVersion so that

net/http/http_server_properties.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_HTTP_HTTP_SERVER_PROPERTIES_H_
 #define NET_HTTP_HTTP_SERVER_PROPERTIES_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 157 matching lines @@
       return;
 
     advertised_versions_ = advertised_versions;
     std::sort(advertised_versions_.begin(), advertised_versions_.end());
   }
 
   const AlternativeService& alternative_service() const {
     return alternative_service_;
   }
 
+  const NextProto& protocol() const { return alternative_service_.protocol; }

[Bence, 2017/06/28 19:08:58]

NextProto is an enum, might be better to return by value not by reference.

[Zhongyi Shi, 2017/07/05 23:08:59]

Done.

+
+  HostPortPair host_port_pair() const {
+    return alternative_service_.host_port_pair();
+  }
+
   base::Time expiration() const { return expiration_; }
 
   const QuicVersionVector& advertised_versions() const {
     return advertised_versions_;
   }
 
  private:
   AlternativeServiceInfo(const AlternativeService& alternative_service,
                          base::Time expiration,
                          const QuicVersionVector& advertised_versions);
@@ skipping 214 matching lines @@
   // Returns whether HttpServerProperties is initialized.
   virtual bool IsInitialized() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpServerProperties);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_H_