Add MobileAccessibilityNotifications to store notification constants

www/MobileAccessibilityNotifications.js

@@ -0,0 +1,39 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+*/
+
+/**
+ * Mobile Accessibility Notification event constants
+ */
+module.exports = {
+    /* MobileAccessibility window events */
+    SCREEN_READER_STATUS_CHANGED : "screenreaderstatuschanged",
+    CLOSED_CAPTIONING_STATUS_CHANGED : "closedcaptioningstatuschanged",
+    GUIDED_ACCESS_STATUS_CHANGED : "guidedaccessstatuschanged",
+    INVERT_COLORS_STATUS_CHANGED : "invertcolorsstatuschanged",
+    MONO_AUDIO_STATUS_CHANGED : "monoaudiostatuschanged",
+    TOUCH_EXPLORATION_STATUS_CHANGED : "touchexplorationstatechanged",
+
+    /* iOS specific UIAccessibilityNotifications  */
+    SCREEN_CHANGED : 1000,
+    LAYOUT_CHANGED : 1001,
+    ANNOUNCEMENT : 1008,
+    PAGE_SCROLLED : 1009
+};