Use new earcons in ChromeVox Next.

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
index 0a320962b770b03c24602cd322a0d418f2f899f5..0e2eb115eb7e52d5c8450c001bc7c3ee47c3a89f 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js
@@ -13,11 +13,13 @@ goog.provide('global');
 goog.require('AutomationPredicate');
 goog.require('AutomationUtil');
 goog.require('ClassicCompatibility');
+goog.require('NextEarcons');
 goog.require('Output');
 goog.require('Output.EventType');
 goog.require('cursors.Cursor');
 goog.require('cvox.BrailleKeyCommand');
 goog.require('cvox.ChromeVoxEditableTextBase');
+goog.require('cvox.ClassicEarcons');
 goog.require('cvox.ExtensionBridge');
 goog.require('cvox.NavBraille');
 
@@ -115,6 +117,25 @@ Background = function() {
         break;
     }
   }.bind(this));
+
+  /** @type {!cvox.AbstractEarcons} @private */
+  this.classicEarcons_ = cvox.ChromeVox.earcons || new cvox.ClassicEarcons();
+
+  /** @type {!cvox.AbstractEarcons} @private */
+  this.nextEarcons_ = new NextEarcons();
+
+  // Turn cvox.ChromeVox.earcons into a getter that returns either the
+  // Next earcons or the Classic earcons depending on the current mode.
+  Object.defineProperty(cvox.ChromeVox, 'earcons', {
+    get: (function() {
+      if (this.mode_ === ChromeVoxMode.FORCE_NEXT ||
+          this.mode_ === ChromeVoxMode.NEXT) {
+        return this.nextEarcons_;
+      } else {
+        return this.classicEarcons_;
+      }
+    }).bind(this)
+  });
 };
 
 Background.prototype = {