Remove HttpNetworkSession::enabled_protocols_.

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 49 matching lines @@
   BROKEN_ALTERNATE_PROTOCOL_LOCATION_HTTP_STREAM_FACTORY_IMPL_JOB_MAIN = 3,
   BROKEN_ALTERNATE_PROTOCOL_LOCATION_MAX,
 };
 
 // Log a histogram to reflect |location|.
 NET_EXPORT void HistogramBrokenAlternateProtocolLocation(
     BrokenAlternateProtocolLocation location);
 
 enum AlternateProtocol {
   NPN_HTTP_2,
-  ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION = NPN_HTTP_2,

[Ryan Hamilton, 2016/09/23 19:23:22]

But, but, but... what if in 2025 we want to do another version of HTTP/2?

:)

[Bence, 2016/09/23 20:05:18]

https://www.google.com/search?q=yagni

   QUIC,
-  ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION = QUIC,
   UNINITIALIZED_ALTERNATE_PROTOCOL,
 };
 
-// Simply returns whether |protocol| is between
-// ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION and
-// ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION (inclusive).
 NET_EXPORT bool IsAlternateProtocolValid(AlternateProtocol protocol);
 
-enum AlternateProtocolSize {
-  NUM_VALID_ALTERNATE_PROTOCOLS =
-    ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION -
-    ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION + 1,
-};
-
 NET_EXPORT const char* AlternateProtocolToString(AlternateProtocol protocol);
 NET_EXPORT AlternateProtocol AlternateProtocolFromString(
     const std::string& str);
 NET_EXPORT_PRIVATE AlternateProtocol AlternateProtocolFromNextProto(
     NextProto next_proto);
 
 // (protocol, host, port) triple as defined in
 // https://tools.ietf.org/id/draft-ietf-httpbis-alt-svc-06.html
 struct NET_EXPORT AlternativeService {
   AlternativeService()
@@ skipping 273 matching lines @@
   virtual void SetMaxServerConfigsStoredInProperties(
       size_t max_server_configs_stored_in_properties) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpServerProperties);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_H_