Cleanup: Remove VersionUpdater::RelaunchBrowser interface method.

chrome/browser/ui/views/update_recommended_message_box.cc

Index: chrome/browser/ui/views/update_recommended_message_box.cc
diff --git a/chrome/browser/ui/views/update_recommended_message_box.cc b/chrome/browser/ui/views/update_recommended_message_box.cc
index c5cf3f75975966e4fcb6d423b9676bf90aaa208b..551acb06caae0eb3ac837e0e0987978c476fec21 100644
--- a/chrome/browser/ui/views/update_recommended_message_box.cc
+++ b/chrome/browser/ui/views/update_recommended_message_box.cc
@@ -50,11 +50,7 @@ UpdateRecommendedMessageBox::~UpdateRecommendedMessageBox() {
 }
 
 bool UpdateRecommendedMessageBox::Accept() {
-#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();
+  chrome::AttemptRelaunch();
   return true;
 }