Remove AlternateProtocol::NPN_SPDY_3_1.

net/http/http_server_properties_impl.cc

 // 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.
 
 #include "net/http/http_server_properties_impl.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
@@ skipping 318 matching lines @@
         it = map_it->second.erase(it);
         continue;
       }
       AlternativeService alternative_service(it->alternative_service);
       if (alternative_service.host.empty()) {
         alternative_service.host = origin.host();
       }
       // If the alternative service is equivalent to the origin (same host, same
       // port, and both TCP), skip it.
       if (host_port_pair.Equals(alternative_service.host_port_pair()) &&
-          NPN_SPDY_MINIMUM_VERSION <= alternative_service.protocol &&
-          alternative_service.protocol <= NPN_SPDY_MAXIMUM_VERSION) {
+          alternative_service.protocol == NPN_HTTP_2) {
         ++it;
         continue;
       }
       valid_alternative_services.push_back(alternative_service);
       ++it;
     }
     if (map_it->second.empty()) {
       alternative_service_map_.Erase(map_it);
     }
     return valid_alternative_services;
@@ skipping 448 matching lines @@
   base::TimeDelta delay = when > now ? when - now : base::TimeDelta();
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE,
       base::Bind(
           &HttpServerPropertiesImpl::ExpireBrokenAlternateProtocolMappings,
           weak_ptr_factory_.GetWeakPtr()),
       delay);
 }
 
 }  // namespace net