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

net/http/http_stream_factory_test_util.h

 // Copyright (c) 2016 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_STREAM_FACTORY_TEST_UTIL_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_TEST_UTIL_H_
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
@@ skipping 98 matching lines @@
                                HttpStreamFactoryImpl::JobType job_type,
                                HttpNetworkSession* session,
                                const HttpRequestInfo& request_info,
                                RequestPriority priority,
                                ProxyInfo proxy_info,
                                const SSLConfig& server_ssl_config,
                                const SSLConfig& proxy_ssl_config,
                                HostPortPair destination,
                                GURL origin_url,
                                NextProto alternative_protocol,
+                               QuicVersion quic_version,
                                const ProxyServer& alternative_proxy_server,
                                bool enable_ip_based_pooling,
                                NetLog* net_log);
 
   ~MockHttpStreamFactoryImplJob() override;
 
   MOCK_METHOD0(Resume, void());
 
   MOCK_METHOD0(Orphan, void());
 };
@@ skipping 23 matching lines @@
       HttpStreamFactoryImpl::JobType job_type,
       HttpNetworkSession* session,
       const HttpRequestInfo& request_info,
       RequestPriority priority,
       const ProxyInfo& proxy_info,
       const SSLConfig& server_ssl_config,
       const SSLConfig& proxy_ssl_config,
       HostPortPair destination,
       GURL origin_url,
       NextProto alternative_protocol,
+      QuicVersion quic_version,
       bool enable_ip_based_pooling,
       NetLog* net_log) override;
 
   std::unique_ptr<HttpStreamFactoryImpl::Job> CreateAltProxyJob(
       HttpStreamFactoryImpl::Job::Delegate* delegate,
       HttpStreamFactoryImpl::JobType job_type,
       HttpNetworkSession* session,
       const HttpRequestInfo& request_info,
       RequestPriority priority,
       const ProxyInfo& proxy_info,
@@ skipping 18 matching lines @@
  private:
   MockHttpStreamFactoryImplJob* main_job_;
   MockHttpStreamFactoryImplJob* alternative_job_;
   bool override_main_job_url_;
   GURL main_job_alternative_url_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_TEST_UTIL_H_