Move yet another block of tests to manifest_version 2

chrome/test/data/extensions/api_test/page_action/add_popup/background.html

Index: chrome/test/data/extensions/api_test/page_action/add_popup/background.html
===================================================================
--- chrome/test/data/extensions/api_test/page_action/add_popup/background.html	(revision 112170)
+++ chrome/test/data/extensions/api_test/page_action/add_popup/background.html	(working copy)
@@ -1,20 +1,6 @@
-<script>
-
-chrome.tabs.getSelected(null, function(tab) {
-  chrome.pageAction.show(tab.id);
-
-  // When the page action icon is clicked for the first time, add a popup.
-  chrome.pageAction.onClicked.addListener(function(tab) {
-    window.tabId = tab.id;
-
-    chrome.pageAction.setPopup({
-      tabId: tab.id,
-      popup: 'a_popup.html'
-    });
-    chrome.test.notifyPass();
-  });
-
-  chrome.test.notifyPass();
-});
-
-</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="background.js"></script>