Ensure tests have an active task runner

chrome/browser/browser_about_handler_unittest.cc

 // 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.
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/browser_about_handler.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/common/referrer.h"
 #include "content/public/test/test_browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 using content::BrowserThread;
 using content::NavigationController;
 using content::NavigationEntry;
 using content::Referrer;
 
-typedef testing::Test BrowserAboutHandlerTest;
+class BrowserAboutHandlerTest : public testing::Test {
+  content::TestBrowserThreadBundle thread_bundle_;
+};
 
 TEST_F(BrowserAboutHandlerTest, WillHandleBrowserAboutURL) {
   std::string chrome_prefix(content::kChromeUIScheme);
   chrome_prefix.append(url::kStandardSchemeSeparator);
   struct AboutURLTestData {
     GURL test_url;
     GURL result_url;
   } test_data[] = {
       {
         GURL("http://google.com"),
@@ skipping 29 matching lines @@
       },
       {
         GURL(chrome_prefix + chrome::kChromeUIInvalidationsHost),
         GURL(chrome_prefix + chrome::kChromeUIInvalidationsHost)
       },
       {
         GURL(chrome_prefix + "host/path?query#ref"),
         GURL(chrome_prefix + "host/path?query#ref"),
       }
   };
-  base::MessageLoopForUI message_loop;
-  content::TestBrowserThread ui_thread(BrowserThread::UI, &message_loop);
   TestingProfile profile;
 
   for (size_t i = 0; i < arraysize(test_data); ++i) {
     GURL url(test_data[i].test_url);
     WillHandleBrowserAboutURL(&url, &profile);
     EXPECT_EQ(test_data[i].result_url, url);
   }
 }
 
 // Ensure that minor BrowserAboutHandler fixup to a URL does not cause us to
 // keep a separate virtual URL, which would not be updated on redirects.
 // See https://crbug.com/449829.
 TEST_F(BrowserAboutHandlerTest, NoVirtualURLForFixup) {
   GURL url("view-source:http://.foo");
 
   // Fixup will remove the dot and add a slash.
   GURL fixed_url("view-source:http://foo/");
 
   // Rewriters will remove the view-source prefix and expect it to stay in the
   // virtual URL.
   GURL rewritten_url("http://foo/");
 
   TestingProfile profile;
   scoped_ptr<NavigationEntry> entry(NavigationController::CreateNavigationEntry(
       url, Referrer(), ui::PAGE_TRANSITION_RELOAD, false, std::string(),
       &profile));
   EXPECT_EQ(fixed_url, entry->GetVirtualURL());
   EXPECT_EQ(rewritten_url, entry->GetURL());
 }