Ensure tests have an active task runner

chrome/browser/chromeos/login/auth/online_attempt_unittest.cc

 // Copyright 2014 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 <string>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "base/test/null_task_runner.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chromeos/login/auth/auth_attempt_state.h"
 #include "chromeos/login/auth/mock_auth_attempt_state_resolver.h"
 #include "chromeos/login/auth/mock_url_fetchers.h"
 #include "chromeos/login/auth/online_attempt.h"
 #include "chromeos/login/auth/test_attempt_state.h"
 #include "chromeos/login/auth/user_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "google_apis/gaia/gaia_auth_consumer.h"
 #include "google_apis/gaia/mock_url_fetcher_factory.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 using ::testing::AnyNumber;
@@ skipping 48 matching lines @@
     base::RunLoop().RunUntilIdle();
     EXPECT_TRUE(error == state_.online_outcome().error());
   }
 
   void CancelLogin(OnlineAttempt* auth) {
     message_loop_->PostTask(FROM_HERE,
                             base::Bind(&OnlineAttempt::CancelClientLogin,
                                        auth->weak_factory_.GetWeakPtr()));
   }
 
+  content::TestBrowserThreadBundle thread_bundle_;
   scoped_refptr<base::MessageLoopProxy> message_loop_;
   scoped_refptr<net::URLRequestContextGetter> request_context_;
-  base::MessageLoop loop_;
   TestAttemptState state_;
   MockAuthAttemptStateResolver resolver_;
   scoped_ptr<OnlineAttempt> attempt_;
 };
 
 TEST_F(OnlineAttemptTest, LoginSuccess) {
   EXPECT_CALL(resolver_, Resolve()).Times(1).RetiresOnSaturation();
 
   message_loop_->PostTask(FROM_HERE,
                           base::Bind(&OnlineAttempt::OnClientLoginSuccess,
@@ skipping 135 matching lines @@
                                      attempt_->weak_factory_.GetWeakPtr(),
                                      error));
 
   // Force UI thread to finish tasks so I can verify |state_|.
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(GoogleServiceAuthError::AuthErrorNone() ==
               state_.online_outcome().error());
 }
 
 }  // namespace chromeos