Add blocking IO restriction on the network thread.

remoting/host/host_signaling_manager.cc

 // Copyright 2014 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 "remoting/host/host_signaling_manager.h"
 
 #include "base/bind.h"
 #include "base/time/time.h"
-#include "net/base/network_change_notifier.h"
 #include "net/socket/client_socket_factory.h"
 #include "remoting/base/auto_thread_task_runner.h"
 #include "remoting/base/logging.h"
 #include "remoting/base/url_request_context_getter.h"
 #include "remoting/host/chromoting_host_context.h"
 #include "remoting/host/dns_blackhole_checker.h"
 #include "remoting/host/heartbeat_sender.h"
 #include "remoting/host/signaling_connector.h"
 #include "remoting/signaling/xmpp_signal_strategy.h"
 
 namespace remoting {
 
 HostSignalingManager::HostSignalingManager(
     scoped_ptr<base::WeakPtrFactory<Listener>> weak_factory_for_listener,
     const scoped_refptr<AutoThreadTaskRunner>& network_task_runner,
-    scoped_ptr<net::NetworkChangeNotifier> network_change_notifier,
     scoped_ptr<SignalStrategy> signal_strategy,
     scoped_ptr<SignalingConnector> signaling_connector,
     scoped_ptr<HeartbeatSender> heartbeat_sender)
     : weak_factory_for_listener_(weak_factory_for_listener.Pass()),
       network_task_runner_(network_task_runner),
-      network_change_notifier_(network_change_notifier.Pass()),
       signal_strategy_(signal_strategy.Pass()),
       signaling_connector_(signaling_connector.Pass()),
       heartbeat_sender_(heartbeat_sender.Pass()) {
 }
 
 scoped_ptr<HostSignalingManager> HostSignalingManager::Create(
     Listener* listener,
     const scoped_refptr<AutoThreadTaskRunner>& network_task_runner,
     const scoped_refptr<net::URLRequestContextGetter>&
         url_request_context_getter,
     const XmppSignalStrategy::XmppServerConfig& xmpp_server_config,
     const std::string& talkgadget_prefix_policy,
     const std::string& host_id,
     const scoped_refptr<const RsaKeyPair>& host_key_pair,
     const std::string& directory_bot_jid,
     scoped_ptr<OAuthTokenGetter::OAuthCredentials> oauth_credentials) {
   DCHECK(network_task_runner->BelongsToCurrentThread());
 
   scoped_ptr<base::WeakPtrFactory<Listener>> weak_factory(
       new base::WeakPtrFactory<Listener>(listener));
 
-  scoped_ptr<net::NetworkChangeNotifier> network_change_notifier(
-      net::NetworkChangeNotifier::Create());
-
   scoped_ptr<XmppSignalStrategy> signal_strategy(
       new XmppSignalStrategy(net::ClientSocketFactory::GetDefaultFactory(),
                              url_request_context_getter, xmpp_server_config));
 
   scoped_ptr<DnsBlackholeChecker> dns_blackhole_checker(new DnsBlackholeChecker(
       url_request_context_getter, talkgadget_prefix_policy));
 
   scoped_ptr<SignalingConnector> signaling_connector(new SignalingConnector(
       signal_strategy.get(), dns_blackhole_checker.Pass(),
       base::Bind(&Listener::OnAuthFailed, weak_factory->GetWeakPtr())));
 
   if (!oauth_credentials->refresh_token.empty()) {
     scoped_ptr<OAuthTokenGetter> oauth_token_getter(new OAuthTokenGetter(
         oauth_credentials.Pass(), url_request_context_getter, false));
 
     signaling_connector->EnableOAuth(oauth_token_getter.Pass());
   }
 
   scoped_ptr<HeartbeatSender> heartbeat_sender(new HeartbeatSender(
       base::Bind(&Listener::OnHeartbeatSuccessful, weak_factory->GetWeakPtr()),
       base::Bind(&Listener::OnUnknownHostIdError, weak_factory->GetWeakPtr()),
       host_id, signal_strategy.get(), host_key_pair, directory_bot_jid));
 
   return scoped_ptr<HostSignalingManager>(new HostSignalingManager(
-      weak_factory.Pass(), network_task_runner, network_change_notifier.Pass(),
-      signal_strategy.Pass(), signaling_connector.Pass(),
-      heartbeat_sender.Pass()));
+      weak_factory.Pass(), network_task_runner, signal_strategy.Pass(),
+      signaling_connector.Pass(), heartbeat_sender.Pass()));
 }
 
 HostSignalingManager::~HostSignalingManager() {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 }
 
 void HostSignalingManager::SendHostOfflineReasonAndDelete(
     const std::string& host_offline_reason,
     const base::TimeDelta& timeout) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
@@ skipping 15 matching lines @@
   if (success) {
     HOST_LOG << "SendHostOfflineReason: succeeded";
   } else {
     HOST_LOG << "SendHostOfflineReason: timed out";
   }
 
   delete this;
 }
 
 }  // namespace remoting