Fix memory leak of Route newly created notifications to notification provider API

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 83368138e56b343d94f4335e40e6c1509ae11fd2..4d1920114907e9ddcf163f3eeb895a0bdf628768 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1879,6 +1879,8 @@
       'browser/notifications/message_center_settings_controller.h',
       'browser/notifications/message_center_stats_collector.cc',
       'browser/notifications/message_center_stats_collector.h',
+      'browser/notifications/notification_conversion_helper.h',
+      'browser/notifications/notification_conversion_helper.cc',
       'browser/notifications/notification_ui_manager_desktop.cc',
       'browser/notifications/sync_notifier/chrome_notifier_service.cc',
       'browser/notifications/sync_notifier/chrome_notifier_service_factory.cc',