Ensure tests have an active task runner

chrome/browser/sync/startup_controller_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 "chrome/browser/sync/startup_controller.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/time/time.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/signin/fake_profile_oauth2_token_service.h"
 #include "chrome/browser/signin/fake_profile_oauth2_token_service_builder.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/sync_driver/sync_prefs.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace browser_sync {
 
 static const char kTestUser[] = "test@gmail.com";
 static const char kTestToken[] = "testToken";
 
 // These are coupled to the implementation of StartupController's
 // GetBackendInitializationStateString which is used by about:sync. We use it
 // as a convenient way to verify internal state and that the class is
@@ skipping 58 matching lines @@
   StartupController* controller() { return controller_.get(); }
   FakeSupervisedUserSigninManagerWrapper* signin() { return signin_.get(); }
   FakeProfileOAuth2TokenService* token_service() {
     return token_service_.get();
   }
   sync_driver::SyncPrefs* sync_prefs() { return sync_prefs_.get(); }
   Profile* profile() { return profile_.get(); }
 
  private:
   bool started_;
-  base::MessageLoop message_loop_;
+  content::TestBrowserThreadBundle thread_bundle_;
   scoped_ptr<StartupController> controller_;
   scoped_ptr<FakeSupervisedUserSigninManagerWrapper> signin_;
   scoped_ptr<FakeProfileOAuth2TokenService> token_service_;
   scoped_ptr<sync_driver::SyncPrefs> sync_prefs_;
   scoped_ptr<TestingProfile> profile_;
 };
 
 // Test that sync doesn't start until all conditions are met.
 TEST_F(StartupControllerTest, Basic) {
   controller()->TryStart();
@@ skipping 144 matching lines @@
   controller()->set_setup_in_progress(true);
 
   // This could happen if the UI triggers a stop-syncing permanently call.
   controller()->Reset(syncer::UserTypes());
 
   // From the UI's point of view, setup is still in progress.
   EXPECT_TRUE(controller()->setup_in_progress());
 }
 
 }  // namespace browser_sync