Quick fix for ChromeVox braille flakiness.

chrome/browser/resources/chromeos/chromevox/braille/liblouis.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 JavaScript shim for the liblouis Native Client wrapper.
  */
 
 goog.provide('cvox.LibLouis');
 
@@ skipping 82 matching lines @@
   if (!goog.isNull(this.tablesDir_)) {
     embed.setAttribute('tablesdir', this.tablesDir_);
   }
   embed.addEventListener('load', goog.bind(this.onInstanceLoad_, this),
       false /* useCapture */);
   embed.addEventListener('error', goog.bind(this.onInstanceError_, this),
       false /* useCapture */);
   embed.addEventListener('message', goog.bind(this.onInstanceMessage_, this),
       false /* useCapture */);
   elem.appendChild(embed);
+  // TODO(plundblad): Remove when the real cause of crbug.com/455889
+  // is fixed.  Sending this empty message will cause the nacl component
+  // to load and fire the load event properly.
+  embed.postMessage('{}');
 
   this.embedElement_ = /** @type {!HTMLEmbedElement} */ (embed);
   this.instanceState_ = cvox.LibLouis.InstanceState.LOADING;
 };
 
 
 /**
  * Detaches the Native Client instance from the DOM.
  */
 cvox.LibLouis.prototype.detach = function() {
@@ skipping 243 matching lines @@
  */
 cvox.LibLouis.Translator.encodeHexString_ = function(arrayBuffer) {
   var array = new Uint8Array(arrayBuffer);
   var hex = '';
   for (var i = 0; i < array.length; i++) {
     var b = array[i];
     hex += (b < 0x10 ? '0' : '') + b.toString(16);
   }
   return hex;
 };