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

chrome/browser/chromeos/login/screen_lock_view.cc

Index: chrome/browser/chromeos/login/screen_lock_view.cc
diff --git a/chrome/browser/chromeos/login/screen_lock_view.cc b/chrome/browser/chromeos/login/screen_lock_view.cc
index 69a270b875f809d624d19f9cceb4749c9dfeb287..388b48a82ead44d5707e2c49ab85c015c44357d4 100644
--- a/chrome/browser/chromeos/login/screen_lock_view.cc
+++ b/chrome/browser/chromeos/login/screen_lock_view.cc
@@ -63,10 +63,14 @@ ScreenLockView::ScreenLockView(ScreenLocker* screen_locker)
       password_field_(NULL),
       screen_locker_(screen_locker),
       main_(NULL),
-      username_(NULL) {
+      username_(NULL),
+      throbber_manager_(new ThrobberManager()) {
   DCHECK(screen_locker_);
 }
 
+ScreenLockView::~ScreenLockView() {
+}
+
 gfx::Size ScreenLockView::GetPreferredSize() {
   return main_->GetPreferredSize();
 }
@@ -160,11 +164,23 @@ gfx::Rect ScreenLockView::GetPasswordBoundsRelativeTo(const views::View* view) {
   return gfx::Rect(p, size());
 }
 
+void ScreenLockView::StartThrobber() {
+  if (password_field_->GetWidget()) {
+    throbber_manager_->CreateAndStart(password_field_->GetWidget(),
+                                      CreateDefaultSmoothedThrobber(),
+                                      login::kThrobberRightMargin);
+  }
+}
+
+void ScreenLockView::StopThrobber() {
+  throbber_manager_->StopAndClose();
+}
+
+
 void ScreenLockView::SetEnabled(bool enabled) {
   views::View::SetEnabled(enabled);
 
   if (!enabled) {
-    user_view_->StartThrobber();
     // TODO(oshima): Re-enabling does not move the focus to the view
     // that had a focus (issue http://crbug.com/43131).
     // Clear focus on the textfield so that re-enabling can set focus
@@ -173,8 +189,6 @@ void ScreenLockView::SetEnabled(bool enabled) {
     // associated Widget yet.
     if (password_field_->GetFocusManager())
       password_field_->GetFocusManager()->ClearFocus();
-  } else {
-    user_view_->StopThrobber();
   }
   password_field_->SetEnabled(enabled);
 }
@@ -213,4 +227,5 @@ void ScreenLockView::ViewHierarchyChanged(bool is_add,
   if (is_add && this == child)
     WizardAccessibilityHelper::GetInstance()->MaybeEnableAccessibility(this);
 }
+
 }  // namespace chromeos