Fix relaunches on the Mac

chrome/browser/first_run/upgrade_util.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_
 #define CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_
 #pragma once
 
+#include "build/build_config.h"
+
+#if !defined(OS_CHROMEOS)
+
 class CommandLine;
 
 namespace upgrade_util {
 
+// Launches Chrome again simulating a "user" launch. If Chrome could not be
+// launched, returns false.
+bool RelaunchChromeBrowser(const CommandLine& command_line);
+
+#if !defined(OS_MACOSX)
+
 void SetNewCommandLine(CommandLine* new_command_line);
 
 // Launches a new instance of the browser if the current instance in persistent
 // mode an upgrade is detected.
 void RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 
-// Launches chrome again simulating a 'user' launch. If chrome could not be
-// launched the return is false.
-bool RelaunchChromeBrowser(const CommandLine& command_line);
-
 // Windows:
 //  Checks if chrome_new.exe is present in the current instance's install.
 // Linux:
 //  Checks if the last modified time of chrome is newer than that of the current
 //  running instance.
 bool IsUpdatePendingRestart();
 
+#endif  // !defined(OS_MACOSX)
+
 }  // namespace upgrade_util
 
+#endif  // !defined(OS_CHROMEOS)
+
 #endif  // CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_