Modified DialogDelegateView to be accessible

chrome/browser/ui/views/sync/profile_signin_confirmation_dialog_views.cc

 // Copyright 2013 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/ui/views/sync/profile_signin_confirmation_dialog_views.h"
 
 #include <algorithm>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 140 matching lines @@
 void ProfileSigninConfirmationDialogViews::OnClosed() {
   Cancel();
 }
 
 ui::ModalType ProfileSigninConfirmationDialogViews::GetModalType() const {
   return ui::MODAL_TYPE_CHILD;
 }
 
 void ProfileSigninConfirmationDialogViews::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
+  views::DialogDelegateView::ViewHierarchyChanged(details);
   if (!details.is_add || details.child != this)
     return;
 
   const SkColor kPromptBarBackgroundColor =
       ui::GetSigninConfirmationPromptBarColor(
           ui::kSigninConfirmationPromptBarBackgroundAlpha);
 
   // Create the prompt label.
   size_t offset;
   const base::string16 domain =
@@ skipping 91 matching lines @@
     views::Button* sender,
     const ui::Event& event) {
   DCHECK(prompt_for_new_profile_);
   DCHECK_EQ(continue_signin_button_, sender);
   if (delegate_) {
     delegate_->OnContinueSignin();
     delegate_ = NULL;
   }
   GetWidget()->Close();
 }