Revert "Speculative revert by sheriff"

content/public/common/platform_notification_data.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_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 #define CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 
 #include <string>
+#include <vector>
 
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
 
 // Structure representing the information associated with a Web Notification.
 // This struct should include the developer-visible information, kept
 // synchronized with the WebNotificationData structure defined in the Blink API.
 struct CONTENT_EXPORT PlatformNotificationData {
   PlatformNotificationData();
   ~PlatformNotificationData();
 
+  // The maximum size of developer-provided data to be stored in the |data|
+  // property of this structure.
+  static const size_t kMaximumDeveloperDataSize = 1024 * 1024;
+
   enum NotificationDirection {
     NotificationDirectionLeftToRight,
     NotificationDirectionRightToLeft,
 
     NotificationDirectionLast = NotificationDirectionRightToLeft
   };
 
   // Title to be displayed with the Web Notification.
   base::string16 title;
 
   // Hint to determine the directionality of the displayed notification.
-  NotificationDirection direction;
+  NotificationDirection direction = NotificationDirectionLeftToRight;
 
   // BCP 47 language tag describing the notification's contents. Optional.
   std::string lang;
 
   // Contents of the notification.
   base::string16 body;
 
   // Tag of the notification. Notifications sharing both their origin and their
   // tag will replace the first displayed notification.
   std::string tag;
 
   // URL of the icon which is to be displayed with the notification.
   GURL icon;
 
   // Whether default notification indicators (sound, vibration, light) should
   // be suppressed.
-  bool silent;
+  bool silent = false;
+
+  // Developer-provided data associated with the notification, in the form of
+  // a serialized string. Must not exceed |kMaximumDeveloperDataSize| bytes.
+  std::vector<char> data;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_