ExtensionSystem cleanup part 3

chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc

 // Copyright 2013 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/api/preference/chrome_direct_setting_api.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/api/preference/preference_api_constants.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
+#include "extensions/browser/extension_system.h"
 
 namespace extensions {
 namespace chromedirectsetting {
 
 const char kOnPrefChangeFormat[] =
     "types.private.ChromeDirectSetting.%s.onChange";
 
 class PreferenceWhitelist {
  public:
   PreferenceWhitelist() {
@@ skipping 118 matching lines @@
           scoped_ptr<Event> event(new Event(event_name, args_copy.Pass()));
           router->DispatchEventToExtension(extension_id, event.Pass());
         }
       }
     }
   }
 }
 
 }  // namespace chromedirectsetting
 }  // namespace extensions
-