Set alternative service even if it is broken.

net/http/http_server_properties_impl.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_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 260 matching lines @@
   if (it->second.alternative_service.host.empty()) {
     alternative_service.host = origin.host();
   }
   return alternative_service;
 }
 
 void HttpServerPropertiesImpl::SetAlternativeService(
     const HostPortPair& origin,
     const AlternativeService& alternative_service,
     double alternative_probability) {
-  AlternativeService complete_alternative_service(alternative_service);
-  if (complete_alternative_service.host.empty()) {
-    complete_alternative_service.host = origin.host();
-  }
-  if (IsAlternativeServiceBroken(complete_alternative_service)) {
-    DVLOG(1) << "Ignore alternative service since it is known to be broken.";
-    return;
-  }
-
   const AlternativeServiceInfo alternative_service_info(
       alternative_service, alternative_probability);
   AlternativeServiceMap::const_iterator it =
       GetAlternateProtocolIterator(origin);
   if (it == alternative_service_map_.end() &&
       alternative_probability >= alternative_service_probability_threshold_) {
     // TODO(rch): Consider the case where multiple requests are started
     // before the first completes. In this case, only one of the jobs
     // would reach this code, whereas all of them should should have.
     HistogramAlternateProtocolUsage(ALTERNATE_PROTOCOL_USAGE_MAPPING_MISSING);
@@ skipping 282 matching lines @@
   base::TimeDelta delay = when > now ? when - now : base::TimeDelta();
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE,
       base::Bind(
           &HttpServerPropertiesImpl::ExpireBrokenAlternateProtocolMappings,
           weak_ptr_factory_.GetWeakPtr()),
       delay);
 }
 
 }  // namespace net