Added support for image notifications.

ui/notifications/notification_types.h

 // Copyright (c) 2012 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 UI_NOTIFICATIONS_NOTIFICATION_TYPES_H_
 #define UI_NOTIFICATIONS_NOTIFICATION_TYPES_H_
 
 #include <string>
 
 #include "ui/base/ui_export.h"
@@ skipping 11 matching lines @@
 UI_EXPORT extern const char kButtonTwoTitleKey[];
 UI_EXPORT extern const char kExpandedMessageKey[];
 UI_EXPORT extern const char kImageUrlKey[];
 UI_EXPORT extern const char kItemsKey[];
 UI_EXPORT extern const char kItemTitleKey[];
 UI_EXPORT extern const char kItemMessageKey[];
 
 enum NotificationType {
   NOTIFICATION_TYPE_SIMPLE,
   NOTIFICATION_TYPE_BASE_FORMAT,
+  NOTIFICATION_TYPE_IMAGE,
   NOTIFICATION_TYPE_MULTIPLE,
 };
 
 enum NotificationPriority {
   MIN_PRIORITY = -2,
   LOW_PRIORITY = -1,
   DEFAULT_PRIORITY = 0,
   HIGH_PRIORITY = 1,
   MAX_PRIORITY = 2,
 };
 
 UI_EXPORT NotificationType StringToNotificationType(std::string& string_type);
 
 }  // namespace notifications
 
 }  // namespace ui
 
 #endif // UI_NOTIFICATIONS_NOTIFICATION_TYPES_H_