This adds the onNetworkChanged event to networkingPrivate

chrome/browser/extensions/event_names.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/event_names.h"
 
 namespace extensions {
 
 namespace event_names {
 
@@ skipping 76 matching lines @@
 const char kOnGalleryChangedEventName[] =
     "mediaGalleriesPrivate.onGalleryChanged";
 
 const char kOnNotificationDisplayed[] = "experimental.notification.onDisplayed";
 const char kOnNotificationError[] = "experimental.notification.onError";
 const char kOnNotificationClosed[] = "experimental.notification.onClosed";
 const char kOnNotificationClicked[] = "experimental.notification.onClicked";
 const char kOnNotificationButtonClicked[] =
     "experimental.notification.onButtonClicked";
 
+const char kOnNetworkChanged[] =
+    "networkingPrivate.onNetworkChanged";
+
 }  // namespace event_names
 
 }  // namespace extensions