Implement cancel() API on a Notification object so that script can cancel or ...

chrome/browser/notifications/notification.h

 // Copyright (c) 2009 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_NOTIFICATIONS_NOTIFICATION_H_
 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
 
 #include "base/basictypes.h"
 #include "chrome/browser/notifications/notification_object_proxy.h"
 #include "googleurl/src/gurl.h"
@@ skipping 19 matching lines @@
   // The URL (may be data:) containing the contents for the notification.
   const GURL& content_url() const { return content_url_; }
 
   // The origin URL of the script which requested the notification.
   const GURL& origin_url() const { return origin_url_; }
 
   void Display() const { proxy()->Display(); }
   void Error() const { proxy()->Error(); }
   void Close(bool by_user) const { proxy()->Close(by_user); }
 
+  bool IsSame(const Notification& other) const {
+    return (*proxy_).IsSame(*(other.proxy()));
+  }
+
  private:
   NotificationObjectProxy* proxy() const { return proxy_.get(); }
 
   // The Origin of the page/worker which created this notification.
   GURL origin_url_;
 
   // The URL of the HTML content of the toast (may be a data: URL for simple
   // string-based notifications).
   GURL content_url_;
 
   // A proxy object that allows access back to the JavaScript object that
   // represents the notification, for firing events.
   scoped_refptr<NotificationObjectProxy> proxy_;
 
   // Disallow assign.  Copy constructor written above.
   void operator=(const Notification&);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_H_