Update latest ChromeVox from upstream

chrome/third_party/chromevox/chromevox/injected/api_util.js

Index: chrome/third_party/chromevox/chromevox/injected/api_util.js
diff --git a/chrome/third_party/chromevox/chromevox/injected/api_util.js b/chrome/third_party/chromevox/chromevox/injected/api_util.js
index a291db397861afdf596713f75ca8e4429fdabc2d..7eddd2f2c30317636f643ee822dac6f2ee4c56ad 100644
--- a/chrome/third_party/chromevox/chromevox/injected/api_util.js
+++ b/chrome/third_party/chromevox/chromevox/injected/api_util.js
@@ -1,23 +1,11 @@
-// Copyright 2013 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// Copyright 2013 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 Shared util methods between api.js and api_implementation.js
  * for doing common tasks such as passing node references between page script
  * and ChromeVox.
- *
- * @author clchen@google.com (Charles L. Chen)
  */
 
 if (typeof(goog) != 'undefined' && goog.provide){