Ensure tests have an active task runner

chrome/browser/extensions/extension_service_unittest.cc

 // Copyright (c) 2013 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 <algorithm>
 #include <set>
 #include <vector>
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
@@ skipping 66 matching lines @@
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "content/public/browser/dom_storage_context.h"
 #include "content/public/browser/gpu_data_manager.h"
 #include "content/public/browser/indexed_db_context.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_constants.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/external_provider_interface.h"
 #include "extensions/browser/install_flag.h"
 #include "extensions/browser/management_policy.h"
 #include "extensions/browser/test_management_policy.h"
 #include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/constants.h"
@@ skipping 5494 matching lines @@
   content::NotificationRegistrar registrar_;
   bool ready_;
 };
 
 // Test that we get enabled/disabled correctly for all the pref/command-line
 // combinations. We don't want to derive from the ExtensionServiceTest class
 // for this test, so we use ExtensionServiceTestSimple.
 //
 // Also tests that we always fire EXTENSIONS_READY, no matter whether we are
 // enabled or not.
-TEST(ExtensionServiceTestSimple, Enabledness) {
+class ExtensionServiceTestSimple : public testing::Test {
+  content::TestBrowserThreadBundle thread_bundle_;
+};
+
+TEST_F(ExtensionServiceTestSimple, Enabledness) {
   // Make sure the PluginService singleton is destroyed at the end of the test.
   base::ShadowingAtExitManager at_exit_manager;
 #if defined(ENABLE_PLUGINS)
   content::PluginService::GetInstance()->Init();
   content::PluginService::GetInstance()->DisablePluginsDiscoveryForTesting();
 #endif
 
   ExtensionErrorReporter::Init(false);  // no noisy errors
   ExtensionsReadyRecorder recorder;
   scoped_ptr<TestingProfile> profile(new TestingProfile());
-  content::TestBrowserThreadBundle thread_bundle_;
 #if defined OS_CHROMEOS
   chromeos::ScopedTestDeviceSettingsService device_settings_service;
   chromeos::ScopedTestCrosSettings cros_settings;
   scoped_ptr<chromeos::ScopedTestUserManager> user_manager(
       new chromeos::ScopedTestUserManager);
 #endif
   scoped_ptr<base::CommandLine> command_line;
   base::FilePath install_dir = profile->GetPath()
       .AppendASCII(extensions::kInstallDirectoryName);
 
@@ skipping 2144 matching lines @@
 
   service()->Observe(chrome::NOTIFICATION_PROFILE_DESTRUCTION_STARTED,
                      content::Source<Profile>(profile()),
                      content::NotificationService::NoDetails());
   EXPECT_EQ(UnloadedExtensionInfo::REASON_PROFILE_SHUTDOWN, unloaded_reason_);
   EXPECT_EQ(0u, registry()->enabled_extensions().size());
   EXPECT_EQ(0u, registry()->disabled_extensions().size());
   EXPECT_EQ(0u, registry()->terminated_extensions().size());
   EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
 }