Integrate the Windows 8 code into the Chromium tree.

win8/metro_driver/toast_notification_handler.h

Index: win8/metro_driver/toast_notification_handler.h
diff --git a/win8/metro_driver/toast_notification_handler.h b/win8/metro_driver/toast_notification_handler.h
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index 0000000000000000000000000000000000000000..f560e340b7d30ae00e7134e6be34dde6825d5209
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+++ b/win8/metro_driver/toast_notification_handler.h
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+// 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"
+
+// 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;
+
+    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);
+  };
+
+  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_;
+};
+
+#endif  // CHROME_BROWSER_UI_METRO_DRIVER_TOAST_NOTIFICATION_HANDLER_H_