Fix license headers in a number of files

chrome/common/extensions/docs/examples/apps/hello-php/index.php

Index: chrome/common/extensions/docs/examples/apps/hello-php/index.php
diff --git a/chrome/common/extensions/docs/examples/apps/hello-php/index.php b/chrome/common/extensions/docs/examples/apps/hello-php/index.php
index f145776e9fe6d2a2f57ef870d0c7f0a82496f8e2..8b0d3cf66621cbccfe63a72a195035f89f021aa8 100644
--- a/chrome/common/extensions/docs/examples/apps/hello-php/index.php
+++ b/chrome/common/extensions/docs/examples/apps/hello-php/index.php
@@ -1,5 +1,9 @@
 <?php
 /**
+ * Copyright (c) 2012 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.
+ *
  * A "Hello world!" for the Chrome Web Store Licensing API, in PHP. This
  * program logs the user in with Google's Federated Login API (OpenID), fetches
  * their license state with OAuth, and prints one of these greetings as
@@ -14,11 +18,6 @@
  * to the login page, keeping the user on the main application page. See
  * popuplib.js
  *
- * Copyright 2010 the Chromium Authors
- *
- * Use of this source code is governed by a BSD-style license that can be found
- * in the "LICENSE" file.
- *
  * Eric Bidelman <ericbidelman@chromium.org>
  */