Do not spawn a thread in browser/interactive ui tests before spawning sandbox host process

chrome/browser/chromeos/login/screens/network_screen_browsertest.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/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/screens/mock_screen_observer.h"
 #include "chrome/browser/chromeos/login/screens/network_screen.h"
 #include "chrome/browser/chromeos/login/screens/wizard_screen.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
@@ skipping 40 matching lines @@
 
  protected:
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
     WizardInProcessBrowserTest::SetUpInProcessBrowserTestFixture();
 
     FakeDBusThreadManager* fake_dbus_thread_manager = new FakeDBusThreadManager;
     fake_dbus_thread_manager->SetFakeClients();
     fake_session_manager_client_ = new FakeSessionManagerClient;
     fake_dbus_thread_manager->SetSessionManagerClient(
         scoped_ptr<SessionManagerClient>(fake_session_manager_client_));
-    DBusThreadManager::InitializeForTesting(fake_dbus_thread_manager);
+    DBusThreadManager::SetInstanceForTesting(fake_dbus_thread_manager);
   }
 
   virtual void SetUpOnMainThread() OVERRIDE {
     WizardInProcessBrowserTest::SetUpOnMainThread();
     mock_screen_observer_.reset(new MockScreenObserver());
     ASSERT_TRUE(WizardController::default_controller() != NULL);
     network_screen_ =
         WizardController::default_controller()->GetNetworkScreen();
     ASSERT_TRUE(network_screen_ != NULL);
     ASSERT_EQ(WizardController::default_controller()->current_screen(),
               network_screen_);
     network_screen_->screen_observer_ = mock_screen_observer_.get();
     ASSERT_TRUE(network_screen_->actor() != NULL);
 
     mock_network_state_helper_ = new login::MockNetworkStateHelper;
     SetDefaultNetworkStateHelperExpectations();
     network_screen_->SetNetworkStateHelperForTest(mock_network_state_helper_);
   }
 
   virtual void TearDownInProcessBrowserTestFixture() OVERRIDE {
     InProcessBrowserTest::TearDownInProcessBrowserTestFixture();
-    DBusThreadManager::Shutdown();
   }
 
   void EmulateContinueButtonExit(NetworkScreen* network_screen) {
     EXPECT_CALL(*mock_screen_observer_,
                 OnExit(ScreenObserver::NETWORK_CONNECTED))
         .Times(1);
     EXPECT_CALL(*mock_network_state_helper_, IsConnected())
         .WillOnce(Return(true));
     network_screen->OnContinuePressed();
     content::RunAllPendingInMessageLoop();
@@ skipping 56 matching lines @@
 
   // Close infobubble with error message - it makes the test stable.
   // EXPECT_FALSE(actor_->IsContinueEnabled());
   // EXPECT_FALSE(actor_->IsConnecting());
   // actor_->ClearErrors();
   EXPECT_EQ(
       1, fake_session_manager_client_->emit_login_prompt_ready_call_count());
 }
 
 }  // namespace chromeos