Extract abstract base to API directory for ProfileSyncService.

chrome/browser/chromeos/login/user_manager_impl.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_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/synchronization/lock.h"
 #include "base/time.h"
 #include "base/timer.h"
+#include "chrome/browser/api/sync/profile_sync_service_observer.h"
 #include "chrome/browser/chromeos/login/user.h"
 #include "chrome/browser/chromeos/login/user_image_loader.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "chrome/browser/profiles/profile_downloader_delegate.h"
-#include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/image/image_skia.h"
 
 class FilePath;
 class PrefService;
 class ProfileDownloader;
 class ProfileSyncService;
 class SkBitmap;
 
@@ skipping 278 matching lines @@
 
   // Timer triggering DownloadProfileDataScheduled for refreshing profile data.
   base::RepeatingTimer<UserManagerImpl> profile_download_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_