Add functionality to the Windows 8 notification display functionality to invoke a caller specified …

win8/metro_driver/toast_notification_handler.h

 // Copyright (c) 2012 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 CHROME_BROWSER_UI_METRO_DRIVER_TOAST_NOTIFICATION_HANDLER_H_
 #define CHROME_BROWSER_UI_METRO_DRIVER_TOAST_NOTIFICATION_HANDLER_H_
 
 #include <windows.ui.notifications.h>
 
 #include "base/string16.h"
+#include "base/win/metro.h"
 
 // Provides functionality to display a metro style toast notification.
 class ToastNotificationHandler {
  public:
   // Holds information about a desktop notification to be displayed.
   struct DesktopNotification {
     std::string origin_url;
     std::string icon_url;
     string16 title;
     string16 body;
     string16 display_source;
     std::string id;
+    base::win::MetroNotificationClickedHandler notification_handler;
+    string16 notification_context;
 
     DesktopNotification(const char* notification_origin,
                         const char* notification_icon,
                         const wchar_t* notification_title,
                         const wchar_t* notification_body,
                         const wchar_t* notification_display_source,
-                        const char* notification_id);
+                        const char* notification_id,
+                        base::win::MetroNotificationClickedHandler handler,
+                        const wchar_t* handler_context);
+
+    DesktopNotification();
   };
 
   ToastNotificationHandler();
   ~ToastNotificationHandler();
 
   void DisplayNotification(const DesktopNotification& notification);
   void CancelNotification();
 
   HRESULT OnActivate(winui::Notifications::IToastNotification* notification,
                      IInspectable* inspectable);
 
  private:
   mswr::ComPtr<winui::Notifications::IToastNotifier> notifier_;
   mswr::ComPtr<winui::Notifications::IToastNotification> notification_;
-
   EventRegistrationToken activated_token_;
+  DesktopNotification notification_info_;
 };
 
 #endif  // CHROME_BROWSER_UI_METRO_DRIVER_TOAST_NOTIFICATION_HANDLER_H_