Add type converters from Mojo notifications to the content types

content/browser/notifications/type_converters.h

+// 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.
+
+#ifndef CONTENT_BROWSER_NOTIFICATIONS_TYPE_CONVERTERS_H_
+#define CONTENT_BROWSER_NOTIFICATIONS_TYPE_CONVERTERS_H_
+
+#include "content/common/content_export.h"
+#include "content/public/common/platform_notification_data.h"
+#include "third_party/WebKit/public/platform/modules/notifications/notification.mojom.h"
+
+namespace mojo {
+
+// TODO(peter): Remove these converters together with the entire
+// PlatformNotificationData type.
+
+template <>
+struct TypeConverter<content::PlatformNotificationData,
+                     blink::mojom::NotificationPtr> {
+  static CONTENT_EXPORT content::PlatformNotificationData Convert(
+      const blink::mojom::NotificationPtr& notification);
+};
+
+template <>
+struct TypeConverter<blink::mojom::NotificationPtr,
+                     content::PlatformNotificationData> {
+  static CONTENT_EXPORT blink::mojom::NotificationPtr Convert(
+      const content::PlatformNotificationData& notification_data);
+};
+
+}  // namespace mojo
+
+#endif  // CONTENT_BROWSER_NOTIFICATIONS_TYPE_CONVERTERS_H_