Remove the download in progress dialog black border.

chrome/browser/ui/views/download/download_in_progress_dialog_view.cc

 // Copyright (c) 2012 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/download/download_in_progress_dialog_view.h"
 
 #include <algorithm>
 
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/size.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/message_box_view.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/widget/widget.h"
 
 // static
 void DownloadInProgressDialogView::Show(Browser* browser,
-                                        gfx::NativeWindow parent_window) {
+                                        gfx::NativeWindow parent) {
   DownloadInProgressDialogView* window =
       new DownloadInProgressDialogView(browser);
-  views::Widget::CreateWindowWithParent(window, parent_window)->Show();
+  views::DialogDelegate::CreateDialogWidget(window, NULL, parent)->Show();
 }
 
 DownloadInProgressDialogView::DownloadInProgressDialogView(Browser* browser)
     : browser_(browser),
       message_box_view_(NULL) {
   int download_count;
   Browser::DownloadClosePreventionType dialog_type =
       browser_->OkToCloseWithInProgressDownloads(&download_count);
 
   string16 explanation_text;
@@ skipping 82 matching lines @@
   return message_box_view_->GetWidget();
 }
 
 const views::Widget* DownloadInProgressDialogView::GetWidget() const {
   return message_box_view_->GetWidget();
 }
 
 views::View* DownloadInProgressDialogView::GetContentsView() {
   return message_box_view_;
 }