Move ExtensionSystem into extensions namespace

chrome/browser/extensions/extension_service.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_service.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 308 matching lines @@
   return true;
 }
 
 ExtensionService::ExtensionService(Profile* profile,
                                    const CommandLine* command_line,
                                    const FilePath& install_directory,
                                    extensions::ExtensionPrefs* extension_prefs,
                                    bool autoupdate_enabled,
                                    bool extensions_enabled)
     : profile_(profile),
-      system_(ExtensionSystem::Get(profile)),
+      system_(extensions::ExtensionSystem::Get(profile)),
       extension_prefs_(extension_prefs),
       settings_frontend_(extensions::SettingsFrontend::Create(profile)),
       pending_extension_manager_(*ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       install_directory_(install_directory),
       extensions_enabled_(extensions_enabled),
       show_extensions_prompts_(true),
       ready_(false),
       toolbar_model_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       menu_manager_(profile),
       app_notification_manager_(new AppNotificationManager(profile)),
@@ skipping 2222 matching lines @@
 
   // To coexist with certain unit tests that don't have a work-thread message
   // loop available at ExtensionService shutdown, we lazy-initialize this
   // object so that those cases neither create nor destroy an
   // APIResourceController.
   if (!api_resource_controller_.get()) {
     api_resource_controller_.reset(new extensions::APIResourceController());
   }
   return api_resource_controller_.get();
 }