Clean up remaining unused globals (on mac).

remoting/host/remoting_me2me_host.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.
 //
 // This file implements a standalone host process for Me2Me.
 
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
@@ skipping 85 matching lines @@
 
 #if defined(TOOLKIT_GTK)
 #include "ui/gfx/gtk_util.h"
 #endif  // defined(TOOLKIT_GTK)
 
 namespace {
 
 // This is used for tagging system event logs.
 const char kApplicationName[] = "chromoting";
 
+#if defined(OS_LINUX)
 // The command line switch used to pass name of the pipe to capture audio on
 // linux.
 const char kAudioPipeSwitchName[] = "audio-pipe-name";
+#endif  // defined(OS_LINUX)
 
 // The command line switch used by the parent to request the host to signal it
 // when it is successfully started.
 const char kSignalParentSwitchName[] = "signal-parent";
 
 // Value used for --host-config option to indicate that the path must be read
 // from stdin.
 const char kStdinConfigPath[] = "-";
 
 void QuitMessageLoop(base::MessageLoop* message_loop) {
@@ skipping 1062 matching lines @@
   return exit_code;
 }
 
 }  // namespace remoting
 
 #if !defined(OS_WIN)
 int main(int argc, char** argv) {
   return remoting::HostMain(argc, argv);
 }
 #endif  // !defined(OS_WIN)