Start moving signin code out of browser/sync.

chrome/browser/ui/webui/signin/login_ui_service_factory.h

Index: chrome/browser/ui/webui/signin/login_ui_service_factory.h
diff --git a/chrome/browser/ui/webui/signin/login_ui_service_factory.h b/chrome/browser/ui/webui/signin/login_ui_service_factory.h
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index 0000000000000000000000000000000000000000..7de8a344308ac6e6511f868b56abab5af5146fa8
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+++ b/chrome/browser/ui/webui/signin/login_ui_service_factory.h
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+// 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_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_FACTORY_H_
+#pragma once
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/profile_keyed_service_factory.h"
+
+class LoginUIService;
+class Profile;
+
+// Singleton that owns all LoginUIServices and associates them with
+// Profiles. Listens for the Profile's destruction notification and cleans up
+// the associated LoginUIService.
+class LoginUIServiceFactory : public ProfileKeyedServiceFactory {
+ public:
+  // Returns the instance of LoginUIService associated with this profile
+  // (creating one if none exists). Returns NULL if this profile cannot have a
+  // LoginUIService (for example, if |profile| is incognito).
+  static LoginUIService* GetForProfile(Profile* profile);
+
+  // Returns an instance of the LoginUIServiceFactory singleton.
+  static LoginUIServiceFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<LoginUIServiceFactory>;
+
+  LoginUIServiceFactory();
+  virtual ~LoginUIServiceFactory();
+
+  // ProfileKeyedServiceFactory:
+  virtual ProfileKeyedService* BuildServiceInstanceFor(
+      Profile* profile) const OVERRIDE;
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_FACTORY_H_