Properly set ShelfAlignment during login

ash/test/ash_test_base.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 "ash/test/ash_test_base.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 274 matching lines @@
 TestSystemTrayDelegate* AshTestBase::GetSystemTrayDelegate() {
   return static_cast<TestSystemTrayDelegate*>(
       Shell::GetInstance()->system_tray_delegate());
 }
 
 void AshTestBase::SetSessionStarted(bool session_started) {
   ash_test_helper_->test_shell_delegate()->test_session_state_delegate()->
       SetActiveUserSessionStarted(session_started);
 }
 
+void AshTestBase::SetSessionStarting() {
+  ash_test_helper_->test_shell_delegate()
+      ->test_session_state_delegate()
+      ->set_session_state(SessionStateDelegate::SESSION_STATE_ACTIVE);
+}
+
 void AshTestBase::SetUserLoggedIn(bool user_logged_in) {
   ash_test_helper_->test_shell_delegate()->test_session_state_delegate()->
       SetHasActiveUser(user_logged_in);
 }
 
 void AshTestBase::SetCanLockScreen(bool can_lock_screen) {
   ash_test_helper_->test_shell_delegate()->test_session_state_delegate()->
       SetCanLockScreen(can_lock_screen);
 }
 
@@ skipping 31 matching lines @@
 
 void AshTestBase::UnblockUserSession() {
   Shell::GetInstance()->session_state_delegate()->UnlockScreen();
   SetSessionStarted(true);
   SetUserAddingScreenRunning(false);
 }
 
 
 }  // namespace test
 }  // namespace ash