arc: Make ChromeVox read an ARC custom notification

ui/message_center/notification.cc

 // Copyright (c) 2013 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 "ui/message_center/notification.h"
 
 #include "base/logging.h"
 #include "ui/message_center/notification_delegate.h"
 #include "ui/message_center/notification_types.h"
 
@@ skipping 40 matching lines @@
       progress(other.progress),
       buttons(other.buttons),
       should_make_spoken_feedback_for_popup_updates(
           other.should_make_spoken_feedback_for_popup_updates),
       clickable(other.clickable),
 #if defined(OS_CHROMEOS)
       pinned(other.pinned),
 #endif  // defined(OS_CHROMEOS)
       vibration_pattern(other.vibration_pattern),
       renotify(other.renotify),
-      silent(other.silent) {}
+      silent(other.silent),
+      accessible_name(other.accessible_name) {}
 
 RichNotificationData::~RichNotificationData() {}
 
 Notification::Notification(NotificationType type,
                            const std::string& id,
                            const base::string16& title,
                            const base::string16& message,
                            const gfx::Image& icon,
                            const base::string16& display_source,
                            const GURL& origin_url,
@@ skipping 104 matching lines @@
       NOTIFICATION_TYPE_SIMPLE, notification_id, title, message, icon,
       base::string16() /* display_source */, GURL(),
       NotifierId(NotifierId::SYSTEM_COMPONENT, system_component_id),
       RichNotificationData(),
       new HandleNotificationClickedDelegate(click_callback)));
   notification->SetSystemPriority();
   return notification;
 }
 
 }  // namespace message_center