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/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 ThrobberWidget;
 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,
                        public views::Textfield::Controller,
                        public NotificationObserver,
                        public UserView::Delegate {
  public:
   explicit ScreenLockView(ScreenLocker* screen_locker);
   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.
   gfx::Rect GetPasswordBoundsRelativeTo(const views::View* view);
 
+  // Returns widget under which throbber should be shown. NULL if there is no

[whywhat, 2010/12/09 16:20:18]

"under which ..." should be "which ... under". Also is it under or above?

[altimofeev, 2010/12/10 16:37:40]

Above. Fixed.

+  // such widget yet.
+  views::Widget* GetWidgetForThrobber();
+
   // views::View implementation:
   virtual void SetEnabled(bool enabled);
   virtual void Layout();
   virtual gfx::Size GetPreferredSize();
 
   // NotificationObserver implementation:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
@@ skipping 24 matching lines @@
   ScreenLocker* screen_locker_;
 
   NotificationRegistrar registrar_;
 
   // User's picture, signout button and password field.
   views::View* main_;
 
   // Username that overlays on top of user's picture.
   views::View* username_;
 
+  // Throbber that is shown when the logging is in progress.
+  ThrobberWidget* throbber_widget_;
+
   DISALLOW_COPY_AND_ASSIGN(ScreenLockView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_