Add/improve ChromeVox feedback for switches

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.js

 // 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.
 
 /**
  * @fileoverview Provides output services for ChromeVox.
  */
 
 goog.provide('Output');
 goog.provide('Output.EventType');
@@ skipping 512 matching lines @@
     rowHeader: {
       speak: '$descendants $state'
     },
     slider: {
       speak: '$earcon(SLIDER) @describe_slider($value, $name) $description ' +
           '$state'
     },
     staticText: {
       speak: '$name='
     },
+    switch: {
+      speak: '$if($checked, $earcon(CHECK_ON), $earcon(CHECK_OFF)) ' +
+          '$if($checked, @describe_switch_on($name), ' +
+          '@describe_switch_off($name)) $description $state'
+    },
     tab: {
       speak: '@describe_tab($name) $state $description'
     },
     table: {
       enter: '@table_summary($name, $tableRowCount, $tableColumnCount) ' +
           '$node(tableHeader)'
     },
     tableHeaderContainer: {
       speak: '$descendants $state $description'
     },
@@ skipping 1228 matching lines @@
   /**
    * Gets the output buffer for braille.
    * @return {!Spannable}
    */
   get brailleOutputForTest() {
     return this.createBrailleOutput_();
   }
 };
 
 });  // goog.scope