WebUI TaskManager: make it default on Chrome OS

chrome/browser/prerender/prerender_browsertest.cc

 // 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.
 
 #include <deque>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "base/test/test_timeouts.h"
 #include "chrome/browser/browsing_data_remover.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prerender/prerender_contents.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/task_manager/task_manager.h"
+#include "chrome/browser/task_manager/task_manager_browsertest_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/in_process_browser_test.h"
 #include "chrome/test/ui_test_utils.h"
 #include "content/browser/renderer_host/render_view_host.h"
@@ skipping 1014 matching lines @@
   bool url_c_is_active_prerender = UrlIsInPrerenderManager(kHtmlFileC);
   EXPECT_TRUE((url_b_is_active_prerender || url_c_is_active_prerender) &&
               !(url_b_is_active_prerender && url_c_is_active_prerender));
   EXPECT_FALSE(UrlIsPendingInPrerenderManager(kHtmlFileB));
   EXPECT_FALSE(UrlIsPendingInPrerenderManager(kHtmlFileC));
 }
 
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderTaskManager) {
   // Show the task manager. This populates the model.
   browser()->window()->ShowTaskManager();
+  // Wait for the model of task manager to start.
+  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
 
   // Start with two resources.
   PrerenderTestURL("files/prerender/prerender_page.html", FINAL_STATUS_USED, 1);
 
   // One of the resources that has a TabContents associated with it should have
   // the Prerender prefix.
   const string16 prefix =
       l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_PRERENDER_PREFIX, string16());
   string16 prerender_title;
   int num_prerender_tabs = 0;
@@ skipping 536 matching lines @@
                    1);
   // Post a task to cancel all the prerenders.
   MessageLoop::current()->PostTask(FROM_HERE,
                                    NewRunnableFunction(CancelAllPrerenders,
                                                        prerender_manager()));
   ui_test_utils::RunMessageLoop();
   EXPECT_TRUE(GetPrerenderContents() == NULL);
 }
 
 }  // namespace prerender