Update from https://crrev.com/311076

net/http/http_server_properties.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.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/stringprintf.h"
+#include "net/socket/ssl_client_socket.h"
+#include "net/ssl/ssl_config.h"
 
 namespace net {
 
 const char kAlternateProtocolHeader[] = "Alternate-Protocol";
 
 namespace {
 
 // The order of these strings much match the order of the enum definition
 // for AlternateProtocol.
 const char* const kAlternateProtocolStrings[] = {
@@ skipping 79 matching lines @@
   return UNINITIALIZED_ALTERNATE_PROTOCOL;
 }
 
 std::string AlternateProtocolInfo::ToString() const {
   return base::StringPrintf("%d:%s p=%f%s", port,
                             AlternateProtocolToString(protocol),
                             probability,
                             is_broken ? " (broken)" : "");
 }
 
+// static
+void HttpServerProperties::ForceHTTP11(SSLConfig* ssl_config) {
+  ssl_config->next_protos.clear();
+  ssl_config->next_protos.push_back(kProtoHTTP11);
+}
+
 }  // namespace net