Introduce new content APIs for persistent notifications.

chrome/browser/notifications/platform_notification_service_impl.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/platform_notification_service_impl.h"
 
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_io_data.h"
@@ skipping 77 matching lines @@
 
   DesktopNotificationService* service =
       DesktopNotificationServiceFactory::GetForProfile(profile);
   DCHECK(service);
 
   service->ShowDesktopNotification(
       params, render_process_id, delegate.Pass(), cancel_callback);
   profile->GetHostContentSettingsMap()->UpdateLastUsage(
       params.origin, params.origin, CONTENT_SETTINGS_TYPE_NOTIFICATIONS);
 }
+
+void PlatformNotificationServiceImpl::DisplayPersistentNotification(
+    content::BrowserContext* browser_context,
+    int64 service_worker_registration_id,
+    const content::ShowDesktopNotificationHostMsgParams& params,
+    int render_process_id) {
+  NOTIMPLEMENTED();
+}
+
+void PlatformNotificationServiceImpl::ClosePersistentNotification(
+    content::BrowserContext* browser_context,
+    const std::string& persistent_notification_id) {
+  NOTIMPLEMENTED();
+}