Remove ShowDesktopNotificationHostMsgParams in favor of PlatformNotificationData.

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 "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();
+
+  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;
+
+  // 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.
+  base::string16 tag;
+
+  // URL of the icon which is to be displayed with the notification.
+  GURL icon;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_