Update from https://crrev.com/311076

net/http/http_stream_factory_impl_job.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_stream_factory_impl_job.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 799 matching lines @@
                   true /* is a proxy server */);
     // Disable revocation checking for HTTPS proxies since the revocation
     // requests are probably going to need to go through the proxy too.
     proxy_ssl_config_.rev_checking_enabled = false;
   }
   if (using_ssl_) {
     InitSSLConfig(origin_, &server_ssl_config_,
                   false /* not a proxy server */);
   }
 
+  base::WeakPtr<HttpServerProperties> http_server_properties =
+      session_->http_server_properties();
+  if (http_server_properties) {
+    http_server_properties->MaybeForceHTTP11(origin_, &server_ssl_config_);
+    if (proxy_info_.is_http() || proxy_info_.is_https()) {
+      http_server_properties->MaybeForceHTTP11(
+          proxy_info_.proxy_server().host_port_pair(), &proxy_ssl_config_);
+    }
+  }
+
   if (IsPreconnecting()) {
     DCHECK(!stream_factory_->for_websockets_);
     return PreconnectSocketsForHttpRequest(
         origin_url_,
         request_info_.extra_headers,
         request_info_.load_flags,
         priority_,
         session_,
         proxy_info_,
         ShouldForceSpdySSL(),
@@ skipping 633 matching lines @@
 
   if (job_status_ == STATUS_SUCCEEDED && other_job_status_ == STATUS_BROKEN) {
     HistogramBrokenAlternateProtocolLocation(
         BROKEN_ALTERNATE_PROTOCOL_LOCATION_HTTP_STREAM_FACTORY_IMPL_JOB_MAIN);
     session_->http_server_properties()->SetBrokenAlternateProtocol(
         HostPortPair::FromURL(request_info_.url));
   }
 }
 
 }  // namespace net