Remove HttpNetworkSession::enabled_protocols_.

net/http/http_network_session.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_NETWORK_SESSION_H_
 #define NET_HTTP_HTTP_NETWORK_SESSION_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 281 matching lines @@
   SSLClientAuthCache ssl_client_auth_cache_;
   std::unique_ptr<ClientSocketPoolManager> normal_socket_pool_manager_;
   std::unique_ptr<ClientSocketPoolManager> websocket_socket_pool_manager_;
   QuicStreamFactory quic_stream_factory_;
   SpdySessionPool spdy_session_pool_;
   std::unique_ptr<HttpStreamFactory> http_stream_factory_;
   std::unique_ptr<HttpStreamFactory> http_stream_factory_for_websocket_;
   std::set<HttpResponseBodyDrainer*> response_drainers_;
 
   NextProtoVector next_protos_;
-  bool enabled_protocols_[NUM_VALID_ALTERNATE_PROTOCOLS];
 
   Params params_;
 
   std::unique_ptr<base::MemoryPressureListener> memory_pressure_listener_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_SESSION_H_