Adding ChromeVox as a component extensions (enabled only for ChromeOS, for no...

chrome/browser/resources/access_chromevox/closure/closure_preinit.js

+// Copyright (c) 2011 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 Code to execute before Closure's base.js.
+ */
+
+// Tell Closure to load JavaScript code from the extension root directory.
+window.CLOSURE_BASE_PATH = chrome.extension.getURL('/closure/');
+
+// Tell Closure not to load deps.js; it's included by manifest.json already.
+window.CLOSURE_NO_DEPS = true;
+
+// Tell Closure to use a loading mechanism designed for Chrome content
+// scripts.
+window.CHROME_CONTENT_SCRIPT = true;