Move another block of extension tests to manifest_version 2.

chrome/test/data/extensions/api_test/executescript/frame_after_load/test.html

-<script>
-
-var baseUrl = 'http://a.com:PORT/files/extensions/api_test/executescript/' +
-    'frame_after_load/';
-
-chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
-  if (changeInfo.status != 'complete')
-    return;
-
-  chrome.test.runTests([
-    function() {
-      // Tests that we can still execute scripts after a frame has loaded after
-      // the main document has completed.
-      var injectFrameCode = 'var frame = document.createElement("iframe");' +
-          'frame.src = "' + baseUrl + 'inner.html";' +
-          'frame.onload = function() {chrome.extension.connect().postMessage("loaded")};' +
-          'document.body.appendChild(frame)';
-      var postFrameCode = 'chrome.extension.connect().postMessage("done");';
-
-      chrome.self.onConnect.addListener(function(port) {
-        port.onMessage.addListener(function(data) {
-          if (data == 'loaded') {
-            chrome.tabs.executeScript(tabId, {code: postFrameCode});
-          } else if (data == 'done') {
-            chrome.test.succeed();
-          }
-        });
-      });
-      chrome.tabs.executeScript(tabId, {code: injectFrameCode});
-    }
-  ]);
-});
-
-chrome.test.getConfig(function(config) {
-  baseUrl = baseUrl.replace(/PORT/, config.testServer.port);
-  chrome.tabs.create({ url: baseUrl + 'outer.html' });
-});
-
-</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="test.js"></script>