Do not mark QUIC as bad on network change events

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 844 matching lines @@
 }
 
 void HttpStreamFactoryImpl::JobController::ReportBrokenAlternativeService() {
   DCHECK(failed_alternative_service_.protocol != kProtoUnknown ||
          failed_alternative_proxy_server_.is_valid());
   DCHECK_NE(OK, alternative_job_net_error_);
 
   UMA_HISTOGRAM_SPARSE_SLOWLY("Net.AlternateServiceFailed",
                               -alternative_job_net_error_);
 
-  if (session_->params().quic_do_not_mark_as_broken_on_network_change &&
-      (alternative_job_net_error_ == ERR_NETWORK_CHANGED ||
-       alternative_job_net_error_ == ERR_INTERNET_DISCONNECTED)) {
+  if (alternative_job_net_error_ == ERR_NETWORK_CHANGED ||
+      alternative_job_net_error_ == ERR_INTERNET_DISCONNECTED) {
     // No need to mark alternative service or proxy as broken.
     return;
   }
 
   if (failed_alternative_proxy_server_.is_valid()) {
     ProxyDelegate* proxy_delegate = session_->params().proxy_delegate;
     if (proxy_delegate) {
       proxy_delegate->OnAlternativeProxyBroken(
           failed_alternative_proxy_server_);
     }
@@ skipping 251 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