Introduce new content APIs for persistent notifications.

content/public/browser/platform_notification_service.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_PLATFORM_NOTIFICATION_SERVICE_H_
 #define CONTENT_PUBLIC_BROWSER_PLATFORM_NOTIFICATION_SERVICE_H_
 
+#include <string>
+
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "content/public/common/show_desktop_notification_params.h"
 #include "third_party/WebKit/public/platform/WebNotificationPermission.h"
 
 class GURL;
 
 namespace content {
 
@@ skipping 17 matching lines @@
 
   // Displays the notification described in |params| to the user. A closure
   // through which the notification can be closed will be stored in the
   // |cancel_callback| argument. This method must be called on the UI thread.
   virtual void DisplayNotification(
       BrowserContext* browser_context,
       const ShowDesktopNotificationHostMsgParams& params,
       scoped_ptr<DesktopNotificationDelegate> delegate,
       int render_process_id,
       base::Closure* cancel_callback) = 0;
+
+  // Displays the persistent notification described in |notification_data| to
+  // the user. This method must be called on the UI thread.
+  virtual void DisplayPersistentNotification(
+      BrowserContext* browser_context,
+      int64 service_worker_registration_id,
+      const ShowDesktopNotificationHostMsgParams& params,
+      int render_process_id) = 0;
+
+  // Closes the persistent notification identified by
+  // |persistent_notification_id|. This method must be called on the UI thread.
+  virtual void ClosePersistentNotification(
+      BrowserContext* browser_context,
+      const std::string& persistent_notification_id) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_PLATFORM_NOTIFICATION_SERVICE_H_