Add type converters from Mojo notifications to the content types

third_party/WebKit/public/platform/modules/notifications/notification.mojom

 // Copyright 2016 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.
 
 module blink.mojom;
 
+// The different types of actions that can be added to a Notification.
+enum NotificationActionType {
+  BUTTON,
+  TEXT
+};
+
 // Structure representing an action button associated with a Notification.
 struct NotificationAction {
+  // Type of action this structure represents.
+  NotificationActionType type;
+
   // Action name that the author can use to distinguish them.
   string action;
 
   // Title of the action button.
   string title;
 
   // URL of the icon for the button. May be empty if no url was specified.
   string icon;
+
+  // Placeholder to display for text-based actions in absence of user input.
+  string? placeholder;
 };
 
 // Directionality options that can be indicated for notifications.
 enum NotificationDirection {
   LEFT_TO_RIGHT,
   RIGHT_TO_LEFT,
   AUTO
 };
 
 // Structure representing the information associated with a Web Notification.
@@ skipping 15 matching lines @@
   // Contents of the notification.
   string body;
 
   // Tag of the notification. Notifications sharing both their origin and their
   // tag will replace the first displayed notification.
   string tag;
 
   // URL of the icon which is to be displayed with the notification.
   string icon;
 
+  // URL of the badge representing the website displaying the notification.
+  string badge;
+
   // Vibration pattern for the notification, following the syntax of the
   // Vibration API. https://w3c.github.io/vibration/
-  array<int32> vibration_pattern;
+  array<uint32> vibration_pattern;
 
   // The time at which the event the notification represents took place.
   double timestamp;
 
   // Whether default notification indicators (sound, vibration, light) should
   // be played again if the notification is replacing an older notification.
   bool renotify = false;
 
   // Whether default notification indicators (sound, vibration, light) should
   // be suppressed.
   bool silent = false;
 
   // Whether the notification should remain onscreen indefinitely, rather than
   // being auto-minimized to the notification center (if allowed by platform).
   bool require_interaction = false;
 
   // Developer-provided data associated with the notification, in the form of
   // a serialized string. Must not exceed |kMaximumDeveloperDataBytes| bytes.
   array<int8> data;
 
   // Actions that should be shown as buttons on the notification.
   array<NotificationAction> actions;
 };