Uses ProxyConfigServiceLinux in the chromoting host to configure proxy.

remoting/host/setup/me2me_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/setup/me2me_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 68 matching lines @@
   }
 #endif  // defined(REMOTING_ENABLE_BREAKPAD)
 
   // Mac OS X requires that the main thread be a UI message loop in order to
   // receive distributed notifications from the System Preferences pane. An
   // IO thread is needed for the pairing registry and URL context getter.
   base::Thread io_thread("io_thread");
   io_thread.StartWithOptions(
       base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
 
+  base::Thread file_thread("file_thread");
+  file_thread.StartWithOptions(
+      base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
+
   base::MessageLoopForUI message_loop;
   base::RunLoop run_loop;
 
   scoped_refptr<DaemonController> daemon_controller =
       DaemonController::Create();
 
   // Pass handle of the native view to the controller so that the UAC prompts
   // are focused properly.
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
@@ skipping 68 matching lines @@
     SetStdHandle(STD_OUTPUT_HANDLE, NULL);
   }
 #elif defined(OS_POSIX)
   // The files will be automatically closed.
   read_file = base::File(STDIN_FILENO);
   write_file = base::File(STDOUT_FILENO);
 #else
 #error Not implemented.
 #endif
 
-  // OAuth client (for credential requests).
+  // OAuth client (for credential requests). IO thread is used for blocking
   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter(
-      new URLRequestContextGetter(io_thread.message_loop_proxy()));
+      new URLRequestContextGetter(io_thread.task_runner(),
+                                  file_thread.task_runner()));
   scoped_ptr<OAuthClient> oauth_client(
       new OAuthClient(url_request_context_getter));
 
   net::URLFetcher::SetIgnoreCertificateRequests(true);
 
   // Create the pairing registry.
   scoped_refptr<PairingRegistry> pairing_registry;
 
 #if defined(OS_WIN)
   base::win::RegKey root;
@@ skipping 28 matching lines @@
     }
   }
 
   // Initialize the pairing registry delegate and set the root keys.
   scoped_ptr<PairingRegistryDelegateWin> delegate(
       new PairingRegistryDelegateWin());
   if (!delegate->SetRootKeys(privileged.Take(), unprivileged.Take()))
     return kInitializationFailed;
 
   pairing_registry = new PairingRegistry(
-      io_thread.message_loop_proxy(),
+      io_thread.task_runner(),
       delegate.PassAs<PairingRegistry::Delegate>());
 #else  // defined(OS_WIN)
   pairing_registry =
-      CreatePairingRegistry(io_thread.message_loop_proxy());
+      CreatePairingRegistry(io_thread.task_runner());
 #endif  // !defined(OS_WIN)
 
   // Set up the native messaging channel.
   scoped_ptr<NativeMessagingChannel> channel(
       new NativeMessagingChannel(read_file.Pass(), write_file.Pass()));
 
   // Create the native messaging host.
   scoped_ptr<Me2MeNativeMessagingHost> host(
       new Me2MeNativeMessagingHost(
           needs_elevation,
@@ skipping 13 matching lines @@
   // This object instance is required by Chrome code (such as MessageLoop).
   base::AtExitManager exit_manager;
 
   base::CommandLine::Init(argc, argv);
   remoting::InitHostLogging();
 
   return StartMe2MeNativeMessagingHost();
 }
 
 }  // namespace remoting