Place the spinner in the right corner of the controls window.

chrome/browser/chromeos/login/screen_lock_view.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_
 #pragma once
 
+#include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/user_view.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "views/controls/textfield/textfield.h"
 #include "views/view.h"
 
 namespace views {
 class ImageView;
 }  // namespace views
 
 namespace chromeos {
 
 class ScreenLocker;
 class UserView;
 
 namespace test {
 class ScreenLockerTester;
 }  // namespace test
 
 // ScreenLockView creates view components necessary to authenticate
 // a user to unlock the screen.
-class ScreenLockView : public views::View,
+class ScreenLockView : public ThrobberHostView,
                        public views::Textfield::Controller,
                        public NotificationObserver,
                        public UserView::Delegate {
  public:
   explicit ScreenLockView(ScreenLocker* screen_locker);
-  virtual ~ScreenLockView() {}
+  virtual ~ScreenLockView();
 
   void Init();
 
   // Clears and sets the focus to the password field.
   void ClearAndSetFocusToPassword();
 
   // Enable/Disable signout button.
   void SetSignoutEnabled(bool enabled);
 
   // Returns the bounds of the password field in ScreenLocker's coordinate.
@@ skipping 42 matching lines @@
 
   // Username that overlays on top of user's picture.
   views::View* username_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenLockView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_