Add TestBrowserThreadBundle into RenderViewHostTestHarness. Kill some unnecessary real threads.

chrome/browser/extensions/activity_log/activity_database_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 <string>
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
@@ skipping 20 matching lines @@
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "chromeos/chromeos_switches.h"
 #endif
 
 namespace extensions {
 
 class ActivityDatabaseTest : public ChromeRenderViewHostTestHarness {
  public:
-  ActivityDatabaseTest()
-      : ui_thread_(BrowserThread::UI, MessageLoop::current()),
-        db_thread_(BrowserThread::DB, MessageLoop::current()),
-        file_thread_(BrowserThread::FILE, MessageLoop::current()) {}
-
   virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
+#if defined OS_CHROMEOS
+    test_user_manager_.reset(new chromeos::ScopedTestUserManager());
+#endif
     CommandLine command_line(CommandLine::NO_PROGRAM);
     profile_ =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
     extension_service_ = static_cast<TestExtensionSystem*>(
         ExtensionSystem::Get(profile_))->CreateExtensionService(
             &command_line, base::FilePath(), false);
     CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableExtensionActivityLogTesting);
   }
 
-  virtual ~ActivityDatabaseTest() {
-    MessageLoop::current()->PostTask(FROM_HERE, MessageLoop::QuitClosure());
-    MessageLoop::current()->Run();
+  virtual void TearDown() OVERRIDE {
+#if defined OS_CHROMEOS
+    test_user_manager_.reset();
+#endif
+    ChromeRenderViewHostTestHarness::TearDown();
   }
 
  protected:
   ExtensionService* extension_service_;
   Profile* profile_;
 
  private:
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread db_thread_;
-  content::TestBrowserThread file_thread_;
-
 #if defined OS_CHROMEOS
   chromeos::ScopedStubCrosEnabler stub_cros_enabler_;
   chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
   chromeos::ScopedTestCrosSettings test_cros_settings_;
-  chromeos::ScopedTestUserManager test_user_manager_;
+  scoped_ptr<chromeos::ScopedTestUserManager> test_user_manager_;
 #endif
 
 };
 
 
 // Check that the database is initialized properly.
 TEST_F(ActivityDatabaseTest, Init) {
   base::ScopedTempDir temp_dir;
   base::FilePath db_file;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
@@ skipping 308 matching lines @@
       APIAction::CALL,
       "brewster",
       "woooof",
       "extra");
   activity_db->RecordAction(action);
   activity_db->Close();
 }
 
 }  // namespace