Shutdown the It2Me host cleanly.

remoting/host/it2me/it2me_native_messaging_host_main.cc

 // Copyright 2013 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/it2me/it2me_native_messaging_host_main.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/i18n/icu_util.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 91 matching lines @@
   // The files are automatically closed.
   base::File read_file(STDIN_FILENO);
   base::File write_file(STDOUT_FILENO);
 #else
 #error Not implemented.
 #endif
 
   base::MessageLoopForUI message_loop;
   base::RunLoop run_loop;
 
-  scoped_refptr<AutoThreadTaskRunner> task_runner =
-      new remoting::AutoThreadTaskRunner(message_loop.message_loop_proxy(),
-                                         run_loop.QuitClosure());
-
   scoped_ptr<It2MeHostFactory> factory(new It2MeHostFactory());
 
   scoped_ptr<NativeMessagingPipe> native_messaging_pipe(
       new NativeMessagingPipe());
 
   // Set up the native messaging channel.
   scoped_ptr<extensions::NativeMessagingChannel> channel(
       new PipeMessagingChannel(read_file.Pass(), write_file.Pass()));
 
-  scoped_ptr<extensions::NativeMessageHost> host(new It2MeNativeMessagingHost(
-      ChromotingHostContext::Create(task_runner), factory.Pass()));
+  scoped_ptr<ChromotingHostContext> context =
+      ChromotingHostContext::Create(new remoting::AutoThreadTaskRunner(
+          message_loop.message_loop_proxy(), run_loop.QuitClosure()));
+  scoped_ptr<extensions::NativeMessageHost> host(
+      new It2MeNativeMessagingHost(context.Pass(), factory.Pass()));
 
   host->Start(native_messaging_pipe.get());
 
-  native_messaging_pipe->Start(
-      host.Pass(), channel.Pass(), run_loop.QuitClosure());
+  native_messaging_pipe->Start(host.Pass(), channel.Pass());
 
   // Run the loop until channel is alive.
   run_loop.Run();
 
   return kSuccessExitCode;
 }
 
 int It2MeNativeMessagingHostMain(int argc, char** argv) {
   // This object instance is required by Chrome code (such as MessageLoop).
   base::AtExitManager exit_manager;
 
   base::CommandLine::Init(argc, argv);
   remoting::InitHostLogging();
 
   return StartIt2MeNativeMessagingHost();
 }
 
 }  // namespace remoting