Create top level apps component and move some apps code there.

apps/app_restore_service_factory.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/extensions/app_restore_service_factory.h"
+#include "apps/app_restore_service_factory.h"
 
-#include "chrome/browser/extensions/app_restore_service.h"
+#include "apps/app_restore_service.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 
-namespace extensions {
+namespace apps {
 
 // static
 AppRestoreService* AppRestoreServiceFactory::GetForProfile(Profile* profile) {
   return static_cast<AppRestoreService*>(
       GetInstance()->GetServiceForProfile(profile, true));
 }
 
 // static
 void AppRestoreServiceFactory::ResetForProfile(Profile* profile) {
   AppRestoreServiceFactory* factory = GetInstance();
@@ skipping 15 matching lines @@
 
 ProfileKeyedService* AppRestoreServiceFactory::BuildServiceInstanceFor(
     Profile* profile) const {
   return new AppRestoreService(profile);
 }
 
 bool AppRestoreServiceFactory::ServiceIsCreatedWithProfile() const {
   return true;
 }
 
-}  // namespace extensions
+}  // namespace apps