Clean up LoginUIService. Remove Singleton behavior from PeopleHandler

chrome/browser/ui/webui/options/sync_setup_handler.h

Index: chrome/browser/ui/webui/options/sync_setup_handler.h
diff --git a/chrome/browser/ui/webui/options/sync_setup_handler.h b/chrome/browser/ui/webui/options/sync_setup_handler.h
index ce72f04e6a1e42a7589b8e84fc7b54aaf3fc879a..2c5390e5a88c4a1ac539b2e70b5ac3d45c9e325b 100644
--- a/chrome/browser/ui/webui/options/sync_setup_handler.h
+++ b/chrome/browser/ui/webui/options/sync_setup_handler.h
@@ -48,7 +48,6 @@ class SyncSetupHandler : public options::OptionsPageUIHandler,
 
   // LoginUIService::LoginUI implementation.
   void FocusUI() override;
-  void CloseUI() override;
 
   static void GetStaticLocalizedValues(
       base::DictionaryValue* localized_strings,
@@ -141,6 +140,9 @@ class SyncSetupHandler : public options::OptionsPageUIHandler,
   // Displays an error dialog which shows timeout of starting the sync backend.
   void DisplayTimeout();
 
+  // Closes the associated sync settings page.
+  void CloseUI();
+
   // Returns true if this object is the active login object.
   bool IsActiveLogin() const;