#include "base/prefs/pref_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
+#include "base/task/cancelable_task_tracker.h"
#include "base/time/time.h"
#include "base/values.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/activity_log/activity_log.h"
-#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/history/history_service.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/history/history_types.h"
#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/cancelable_task_tracker.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/api/history.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "extensions/browser/event_router.h"
+#include "extensions/browser/extension_system.h"
namespace extensions {