[Mac] Add XPC alerts to GetDisplayedNotifications

chrome/browser/notifications/message_center_display_service.cc

 // Copyright 2016 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/message_center_display_service.h"
 
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/profiles/profile.h"
+#include "content/public/browser/browser_thread.h"
 
 MessageCenterDisplayService::MessageCenterDisplayService(
     Profile* profile,
     NotificationUIManager* ui_manager)
     : profile_(profile), ui_manager_(ui_manager) {}
 
 MessageCenterDisplayService::~MessageCenterDisplayService() {}
 
 void MessageCenterDisplayService::Display(
     NotificationCommon::Type notification_type,
@@ skipping 14 matching lines @@
 
 bool MessageCenterDisplayService::GetDisplayed(
     std::set<std::string>* notifications) const {
   DCHECK(notifications);
   for (auto notification_id : ui_manager_->GetAllIdsByProfile(
            NotificationUIManager::GetProfileID(profile_))) {
     notifications->insert(notification_id);
   }
   return true;
 }
+
+void MessageCenterDisplayService::GetDisplayedAsync(
+    const NotificationCommon::NotificationResultCallback& callback) const {
+  std::unique_ptr<std::set<std::string>> displayedNotifications =

[Robert Sesek, 2017/02/24 22:38:05]

nit: under_scores

[Miguel Garcia, 2017/03/22 22:00:06]

Done.

+      base::MakeUnique<std::set<std::string>>();
+  GetDisplayed(displayedNotifications.get());
+  content::BrowserThread::PostTask(
+      content::BrowserThread::IO, FROM_HERE,
+      base::Bind(callback, base::Passed(&displayedNotifications),
+                 true /* supports sync */));
+}