Cleanup: Remove VersionUpdater::RelaunchBrowser interface method.

chrome/browser/lifetime/application_lifetime.h

 // 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.
 
 #ifndef CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
 #define CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_
 
 #include "base/compiler_specific.h"
 #include "build/build_config.h"
 
 class Browser;
 
 namespace chrome {
 
 // Starts a user initiated exit process. Called from Browser::Exit.
 // On platforms other than ChromeOS, this is equivalent to
 // CloseAllBrowsers() On ChromeOS, this tells session manager
 // that chrome is signing out, which lets session manager send
 // SIGTERM to start actual exit process.
 void AttemptUserExit();
 
 // Starts a user initiated restart process. On platforms other than
 // chromeos, this sets a restart bit in the preference so that
 // chrome will be restarted at the end of shutdown process. On
 // ChromeOS, this simply exits the chrome, which lets sesssion
 // manager re-launch the browser with restore last session flag.
 void AttemptRestart();
 
+// Starts a user initiated relaunch process. On platforms other than
+// chromeos, this is equivalent to AttemptRestart. On ChromeOS, this relaunches
+// the entire OS, instead of just relaunching the browser.
+void AttemptRelaunch();
+
 // Attempt to exit by closing all browsers.  This is equivalent to
 // CloseAllBrowsers() on platforms where the application exits
 // when no more windows are remaining. On other platforms (the Mac),
 // this will additionally exit the application if all browsers are
 // successfully closed.
 //  Note that he exit process may be interrupted by download or
 // unload handler, and the browser may or may not exit.
 void AttemptExit();
 
 #if defined(OS_CHROMEOS)
@@ skipping 39 matching lines @@
 void OnAppExiting();
 
 // Called once the application is exiting to do any platform specific
 // processing required.
 void HandleAppExitingForPlatform();
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_H_