Disable HTTP/2 Alternative Services.

net/http/http_stream_factory_impl_job_controller.cc

 // Copyright (c) 2016 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_controller.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 970 matching lines @@
        alternative_service_vector) {
     DCHECK(IsAlternateProtocolValid(alternative_service.protocol));
     if (!quic_advertised && alternative_service.protocol == kProtoQUIC)
       quic_advertised = true;
     if (http_server_properties.IsAlternativeServiceBroken(
             alternative_service)) {
       HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_BROKEN, false);
       continue;
     }
 
-
     // Some shared unix systems may have user home directories (like
     // http://foo.com/~mike) which allow users to emit headers.  This is a bad
     // idea already, but with Alternate-Protocol, it provides the ability for a
     // single user on a multi-user system to hijack the alternate protocol.
     // These systems also enforce ports <1024 as restricted ports.  So don't
     // allow protocol upgrades to user-controllable ports.
     const int kUnrestrictedPort = 1024;
     if (!session_->params().enable_user_alternate_protocol_ports &&
         (alternative_service.port >= kUnrestrictedPort &&
          origin.port() < kUnrestrictedPort))
       continue;
 
     if (alternative_service.protocol == kProtoHTTP2) {
-      if (origin.host() != alternative_service.host &&
-          !session_->params()
-               .enable_http2_alternative_service_with_different_host) {
+      if (!session_->params().enable_http2_alternative_service)
         continue;
-      }
 
       // Cache this entry if we don't have a non-broken Alt-Svc yet.
       if (first_alternative_service.protocol == kProtoUnknown)
         first_alternative_service = alternative_service;
       continue;
     }
 
     DCHECK_EQ(kProtoQUIC, alternative_service.protocol);
     if (origin.host() != alternative_service.host &&
         !session_->params()
@@ skipping 139 matching lines @@
     return;
   DCHECK(alternative_job_->alternative_proxy_server().is_valid());
   alternative_job_->Start(request_->stream_type());
 }
 
 bool HttpStreamFactoryImpl::JobController::IsJobOrphaned(Job* job) const {
   return !request_ || (job_bound_ && bound_job_ != job);
 }
 
 }  // namespace net