#include "chrome/browser/extensions/api/preference/preference_api.h"
#include "chrome/browser/extensions/api/preference/preference_helpers.h"
#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/extensions/api/font_settings.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/font_list_async.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
+#include "extensions/browser/extension_system.h"
#include "extensions/common/error_utils.h"
#if defined(OS_WIN)