Fixes for handling of MockDBusThreadManager::GetSystemBus().

chrome/browser/chromeos/login/existing_user_controller_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/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/cros/cros_in_process_browser_test.h"
 #include "chrome/browser/chromeos/cros/cros_mock.h"
@@ skipping 92 matching lines @@
         testing_profile_(NULL) {
   }
 
   ExistingUserController* existing_user_controller() {
     return ExistingUserController::current_controller();
   }
 
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
     MockDBusThreadManager* mock_dbus_thread_manager =
         new MockDBusThreadManager;
+    EXPECT_CALL(*mock_dbus_thread_manager, GetSystemBus())
+        .WillRepeatedly(Return(reinterpret_cast<dbus::Bus*>(NULL)));
     DBusThreadManager::InitializeForTesting(mock_dbus_thread_manager);
     CrosInProcessBrowserTest::SetUpInProcessBrowserTestFixture();
     cros_mock_->InitStatusAreaMocks();
     cros_mock_->SetStatusAreaMocksExpectations();
 
     mock_network_library_ = cros_mock_->mock_network_library();
     EXPECT_CALL(*mock_network_library_, AddUserActionObserver(_))
         .Times(AnyNumber());
     MockSessionManagerClient* mock_session_manager_client =
         mock_dbus_thread_manager->mock_session_manager_client();
@@ skipping 192 matching lines @@
   EXPECT_CALL(*mock_login_display_host_.get(), OnCompleteLogin())
       .Times(1);
   EXPECT_CALL(*mock_user_manager_.user_manager(), IsCurrentUserNew())
       .Times(AnyNumber())
       .WillRepeatedly(Return(true));
   existing_user_controller()->CompleteLogin(kNewUsername, kPassword);
   content::RunAllPendingInMessageLoop();
 }
 
 }  // namespace chromeos