Plumb notification action index for desktop SW notificationclick

chrome/browser/notifications/persistent_notification_delegate.cc

 // Copyright 2014 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/notifications/persistent_notification_delegate.h"
 
 #include "base/bind.h"
 #include "base/guid.h"
 #include "chrome/browser/notifications/platform_notification_service_impl.h"
 #include "content/public/common/persistent_notification_status.h"
@@ skipping 15 matching lines @@
   PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClose(
       browser_context_,
       persistent_notification_id_,
       origin_);
 }
 
 void PersistentNotificationDelegate::Click() {
   PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClick(
       browser_context_,
       persistent_notification_id_,
-      origin_);
+      origin_,
+      -1 /* action_index */);
+}
+
+void PersistentNotificationDelegate::ButtonClick(int button_index) {
+  PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClick(
+      browser_context_,
+      persistent_notification_id_,
+      origin_,
+      button_index);
 }
 
 std::string PersistentNotificationDelegate::id() const {
   return id_;
 }