Cleanup: Remove VersionUpdater::RelaunchBrowser interface method.

chrome/browser/lifetime/application_lifetime.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.
 
 #include "chrome/browser/lifetime/application_lifetime.h"
 
 #include <memory>
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 217 matching lines @@
   content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
                                    base::Bind(&ExitCleanly));
 #else
   // Set the flag to restore state after the restart.
   pref_service->SetBoolean(prefs::kRestartLastSessionOnShutdown, true);
   AttemptExit();
 #endif
 }
 #endif  // !defined(OS_ANDROID)
 
+void AttemptRelaunch() {
+#if defined(OS_CHROMEOS)
+  chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
+  // If running the Chrome OS build, but we're not on the device, fall through.
+#endif
+  chrome::AttemptRestart();
+}
+
 void AttemptExit() {
 #if defined(OS_CHROMEOS)
   // On ChromeOS, user exit and system exits are the same.
   AttemptUserExit();
 #else
   // If we know that all browsers can be closed without blocking,
   // don't notify users of crashes beyond this point.
   // Note that MarkAsCleanShutdown() does not set UMA's exit cleanly bit
   // so crashes during shutdown are still reported in UMA.
 #if !defined(OS_ANDROID)
@@ skipping 132 matching lines @@
 void OnAppExiting() {
   static bool notified = false;
   if (notified)
     return;
   notified = true;
   HandleAppExitingForPlatform();
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace chrome