Remove NPN from SSLConfig and SSLClientSocket*.

net/http/http_network_session.cc

Index: net/http/http_network_session.cc
diff --git a/net/http/http_network_session.cc b/net/http/http_network_session.cc
index a4c1913950f22ea0043739f92f5ffb317a66c5b3..66a4eab8b06649bcdb76d4f5142b6912c2fe0bdc 100644
--- a/net/http/http_network_session.cc
+++ b/net/http/http_network_session.cc
@@ -365,16 +365,11 @@ void HttpNetworkSession::GetAlpnProtos(NextProtoVector* alpn_protos) const {
   *alpn_protos = next_protos_;
 }
 
-void HttpNetworkSession::GetNpnProtos(NextProtoVector* npn_protos) const {
-  npn_protos->clear();
-}
-
 void HttpNetworkSession::GetSSLConfig(const HttpRequestInfo& request,
                                       SSLConfig* server_config,
                                       SSLConfig* proxy_config) const {
   ssl_config_service_->GetSSLConfig(server_config);
   GetAlpnProtos(&server_config->alpn_protos);
-  GetNpnProtos(&server_config->npn_protos);
   *proxy_config = *server_config;
   if (request.privacy_mode == PRIVACY_MODE_ENABLED) {
     server_config->channel_id_enabled = false;