Reuse category flush when outputing live regions.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background.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 The entry point for all ChromeVox2 related code for the
  * background page.
  */
 
 goog.provide('Background');
@@ skipping 628 matching lines @@
    *     cvox2.Output to prepend to the output.
    * @private
    */
   outputLiveRegionChange_: function(node, opt_prependFormatStr) {
     var range = cursors.Range.fromNode(node);
     var output = new Output();
     if (opt_prependFormatStr) {
       output.format(opt_prependFormatStr);
     }
     output.withSpeech(range, null, Output.EventType.NAVIGATE);
+    output.withSpeechCategory(cvox.TtsCategory.LIVE);
     output.go();
   },
 
   /**
    * Returns true if the url should have Classic running.
    * @return {boolean}
    * @private
    */
   shouldEnableClassicForUrl_: function(url) {
     return this.mode_ != ChromeVoxMode.FORCE_NEXT &&
@@ skipping 142 matching lines @@
               node.state.protected,
               cvox.ChromeVox.tts);
     }
   }
 };
 
 /** @type {Background} */
 global.backgroundObj = new Background();
 
 });  // goog.scope