Adding run_at to chrome.tabs.executeScript/insertCss.

chrome/test/data/extensions/api_test/executescript/run_at/test.js

+// 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.
+
+var relativePath =
+    '/files/extensions/api_test/executescript/run_at/test.html';
+var testUrl = 'http://b.com:PORT' + relativePath;
+
+chrome.test.getConfig(function(config) {
+  testUrl = testUrl.replace(/PORT/, config.testServer.port);
+  chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
+    if (changeInfo.status != 'complete')
+      return;
+    chrome.tabs.onUpdated.removeListener(arguments.callee);
+    chrome.test.runTests([
+      function executeAtStartShouldSucceed() {
+        var scriptDetails = {};
+        scriptDetails.code = "document.title = 'Injected';";
+        scriptDetails.runAt = "document_start";
+        chrome.tabs.executeScript(tabId, scriptDetails, function() {
+          chrome.tabs.get(tabId, chrome.test.callbackPass(function(tab) {
+            chrome.test.assertEq('Injected', tab.title);
+          }));
+        });
+      },
+    ]);
+  });
+  chrome.tabs.create({ url: testUrl });
+});