Move another block of extension tests to manifest_version 2.

chrome/test/data/extensions/api_test/executescript/file_after_close/extension_page.html

Index: chrome/test/data/extensions/api_test/executescript/file_after_close/extension_page.html
===================================================================
--- chrome/test/data/extensions/api_test/executescript/file_after_close/extension_page.html	(revision 112170)
+++ chrome/test/data/extensions/api_test/executescript/file_after_close/extension_page.html	(working copy)
@@ -1,14 +1,6 @@
-<script>
-window.onload = function() {
-  chrome.tabs.getAllInWindow(undefined, function(tabs) {
-    for (var i = 0; i < tabs.length; i++) {
-      var tab = tabs[i];
-      if (tab.url.indexOf('web_page1') > -1) {
-        chrome.tabs.executeScript(tab.id, { file: 'script.js' });      
-        window.close();
-        break;
-      }
-    }    
-  });
-}
-</script>
+<!--
+ * 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.
+-->
+<script src="extension_page.js"></script>