Re-land:

chrome/browser/chromeos/login/helper.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/login/helper.h"
 
 #include "base/file_util.h"
 #include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/chromeos/system_access.h"
 #include "chrome/browser/google/google_util.h"
@@ skipping 85 matching lines @@
   while (host_gtk_window && !GTK_IS_WINDOW(host_gtk_window))
     host_gtk_window = gtk_widget_get_parent(host_gtk_window);
   if (!host_gtk_window) {
     LOG(WARNING) << "Failed to start the throbber: no GtkWindow";
     return;
   }
 
   views::SmoothedThrobber* throbber = CreateDefaultSmoothedThrobber();
   throbber->set_stop_delay_ms(0);
   gfx::Rect throbber_bounds = CalculateThrobberBounds(throbber);
+  throbber_bounds.Offset(host_view_->GetScreenBounds().origin());
 
-  throbber_widget_ = views::Widget::CreateWidget();
-  static_cast<views::WidgetGtk*>(throbber_widget_->native_widget())->
-      make_transient_to_parent();
+  throbber_widget_ = new views::Widget;
 
-  throbber_bounds.Offset(host_view_->GetScreenBounds().origin());
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
   params.transparent = true;
   params.bounds = throbber_bounds;
   params.parent = host_gtk_window;
   throbber_widget_->Init(params);
   throbber_widget_->SetContentsView(throbber);
   // This keeps the window from flashing at startup.
   gdk_window_set_back_pixmap(
       throbber_widget_->GetNativeView()->window, NULL, false);
   throbber_widget_->Show();
@@ skipping 104 matching lines @@
   gfx::Size preferred_size = NativeButton::GetPreferredSize();
   // Set minimal width.
   if (preferred_size.width() < kButtonMinWidth)
     preferred_size.set_width(kButtonMinWidth);
   return preferred_size;
 }
 
 }  // namespace login
 
 }  // namespace chromeos