Use new earcons in ChromeVox Next.

chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js

Index: chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js
diff --git a/chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js b/chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js
index 1dabd1ad6d461aea3f81f0a732af57caf8869229..c1c5dd19c9dadd518d5c2ef5844b3b0fb504e3d9 100644
--- a/chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js
+++ b/chrome/browser/resources/chromeos/chromevox/host/interface/abstract_earcons.js
@@ -37,10 +37,12 @@ cvox.Earcon = {
   OBJECT_SELECT: 'object_select',
   PAGE_FINISH_LOADING: 'page_finish_loading',
   PAGE_START_LOADING: 'page_start_loading',
+  POP_UP_BUTTON: 'pop_up_button',
   RECOVER_FOCUS: 'recover_focus',
   SELECTION: 'selection',
   SELECTION_REVERSE: 'selection_reverse',
   SKIP: 'skip',
+  SLIDER: 'slider',
   WRAP: 'wrap',
   WRAP_EDGE: 'wrap_edge',
 };
@@ -50,16 +52,18 @@ cvox.Earcon = {
  * @constructor
  */
 cvox.AbstractEarcons = function() {
-  /**
-   * Public flag set to enable or disable earcons. Callers should prefer
-   * toggle(); however, this member is public for initialization.
-   * @type {boolean}
-   */
-  this.enabled = true;
 };
 
 
 /**
+ * Public static flag set to enable or disable earcons. Callers should prefer
+ * toggle(); however, this member is public for initialization.
+ * @type {boolean}
+ */
+cvox.AbstractEarcons.enabled = true;
+
+
+/**
  * Plays the specified earcon sound.
  * @param {cvox.Earcon} earcon An earcon identifier.
  */
@@ -81,6 +85,6 @@ cvox.AbstractEarcons.prototype.earconsAvailable = function() {
  * @return {boolean} True if earcons are now enabled; false otherwise.
  */
 cvox.AbstractEarcons.prototype.toggle = function() {
-  this.enabled = !this.enabled;
-  return this.enabled;
+  cvox.AbstractEarcons.enabled = !cvox.AbstractEarcons.enabled;
+  return cvox.AbstractEarcons.enabled;
 };