Introduce a new API to handle native notification clicks

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"
 
 MessageCenterDisplayService::MessageCenterDisplayService(
     Profile* profile,
     NotificationUIManager* ui_manager)
     : profile_(profile), ui_manager_(ui_manager) {}
 
 MessageCenterDisplayService::~MessageCenterDisplayService() {}
 
-void MessageCenterDisplayService::Display(const std::string& notification_id,
-                                          const Notification& notification) {
+void MessageCenterDisplayService::Display(
+    NotificationCommon::Type notification_type,
+    const std::string& notification_id,
+    const Notification& notification) {
+  // TODO(miguelg): MCDS should stop relying on the |notification|'s delegate
+  // for Close/Click operations once the Notification object becomes a mojom
+  // type.
   ui_manager_->Add(notification, profile_);
 }
 
-void MessageCenterDisplayService::Close(const std::string& notification_id) {
+void MessageCenterDisplayService::Close(
+    NotificationCommon::Type notification_type,
+    const std::string& notification_id) {
   ui_manager_->CancelById(notification_id,
                           NotificationUIManager::GetProfileID(profile_));
 }
 
 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;
 }
 
 bool MessageCenterDisplayService::SupportsNotificationCenter() const {
   return false;
 }