Move ExtensionSystem into extensions namespace

chrome/browser/extensions/extension_system_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/extension_system_factory.h"
 
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/protector/protector_service_factory.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/global_error/global_error_service_factory.h"
 
+namespace extensions {
+
 // ExtensionSystemSharedFactory
 
 // static
-ExtensionSystemImpl::Shared* ExtensionSystemSharedFactory::GetForProfile(
-    Profile* profile) {
+ExtensionSystemImpl::Shared*
+ExtensionSystemSharedFactory::GetForProfile(Profile* profile) {
   return static_cast<ExtensionSystemImpl::Shared*>(
       GetInstance()->GetServiceForProfile(profile, true));
 }
 
 // static
 ExtensionSystemSharedFactory* ExtensionSystemSharedFactory::GetInstance() {
   return Singleton<ExtensionSystemSharedFactory>::get();
 }
 
 ExtensionSystemSharedFactory::ExtensionSystemSharedFactory()
@@ skipping 50 matching lines @@
   return new ExtensionSystemImpl(profile);
 }
 
 bool ExtensionSystemFactory::ServiceHasOwnInstanceInIncognito() {
   return true;
 }
 
 bool ExtensionSystemFactory::ServiceIsCreatedWithProfile() {
   return true;
 }
+
+}  // namespace extensions