Disable HTTP/2 over NPN (with OpenSSL).

net/http/http_network_session.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_network_session.h"
 
 #include <utility>
 
 #include "base/compiler_specific.h"
 #include "base/debug/stack_trace.h"
@@ skipping 302 matching lines @@
   websocket_socket_pool_manager_->CloseIdleSockets();
   spdy_session_pool_.CloseCurrentIdleSessions();
 }
 
 bool HttpNetworkSession::IsProtocolEnabled(AlternateProtocol protocol) const {
   DCHECK(IsAlternateProtocolValid(protocol));
   return enabled_protocols_[
       protocol - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION];
 }
 
-void HttpNetworkSession::GetNextProtos(NextProtoVector* next_protos) const {
+void HttpNetworkSession::GetAlpnProtos(NextProtoVector* alpn_protos) const {
   if (HttpStreamFactory::spdy_enabled()) {
-    *next_protos = next_protos_;
+    *alpn_protos = next_protos_;
   } else {
-    next_protos->clear();
+    alpn_protos->clear();
   }
 }
 
+void HttpNetworkSession::GetNpnProtos(NextProtoVector* npn_protos) const {
+  if (HttpStreamFactory::spdy_enabled()) {
+    *npn_protos = next_protos_;
+    DisableHTTP2(npn_protos);
+  } else {
+    npn_protos->clear();
+  }
+}
+
 bool HttpNetworkSession::HasSpdyExclusion(
     HostPortPair host_port_pair) const {
   return params_.forced_spdy_exclusions.find(host_port_pair) !=
       params_.forced_spdy_exclusions.end();
 }
 
 ClientSocketPoolManager* HttpNetworkSession::GetSocketPoolManager(
     SocketPoolType pool_type) {
   switch (pool_type) {
     case NORMAL_SOCKET_POOL:
       return normal_socket_pool_manager_.get();
     case WEBSOCKET_SOCKET_POOL:
       return websocket_socket_pool_manager_.get();
     default:
       NOTREACHED();
       break;
   }
   return NULL;
 }
 
 }  // namespace net