Disable the ChromeVox menu button until it's complete.

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

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js
index 286fc92b9ab41c2ad4080f2cc7ababa2cf715bcb..365c7c71b4d2f9e9a306f12d05e8aef7c05ae860 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js
@@ -54,10 +54,13 @@ Panel.init = function() {
     Panel.exec(/** @type {PanelCommand} */(command));
   }, false);
 
-  $('menu').addEventListener('click', Panel.onMenu, false);
   $('options').addEventListener('click', Panel.onOptions, false);
   $('close').addEventListener('click', Panel.onClose, false);
 
+  // The ChromeVox menu isn't fully implemented yet, disable it.
+  $('menu').disabled = true;
+  $('triangle').style.display = 'none';
+
   Msgs.addTranslatedMessagesToDom(document);
 };
 
@@ -121,14 +124,6 @@ Panel.exec = function(command) {
 };
 
 /**
- * Open the ChromeVox Menu.
- */
-Panel.onMenu = function() {
-  window.location = '#fullscreen';
-  // TODO(dmazzoni): implement the menu UI here.
-};
-
-/**
  * Open the ChromeVox Options.
  */
 Panel.onOptions = function() {