Convert JavascriptAlertActivatesTab to browser_tests framework.

chrome/test/ui_test_utils.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_TEST_UI_TEST_UTILS_H_
 #define CHROME_TEST_UI_TEST_UTILS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "chrome/common/notification_observer.h"
 
+class AppModalDialog;
 class Browser;
 class DownloadManager;
 class GURL;
 class NavigationController;
 class RenderViewHost;
 class Value;
 
 // A collections of functions designed for use with InProcessBrowserTest.
 namespace ui_test_utils {
 
@@ skipping 54 matching lines @@
 bool ExecuteJavaScriptAndExtractString(RenderViewHost* render_view_host,
                                        const std::wstring& frame_xpath,
                                        const std::wstring& script,
                                        std::string* result);
 
 GURL GetTestUrl(const std::wstring& dir, const std::wstring file);
 
 // Creates an observer that waits for |download_manager| to report that it
 // has a total of |count| downloads that have been handles
 void WaitForDownloadCount(DownloadManager* download_manager, size_t count);
+
+// Blocks until an application modal dialog is showns and returns it.
+AppModalDialog* WaitForAppModalDialog();
+
 }
 
 #endif  // CHROME_TEST_UI_TEST_UTILS_H_