Add GetDefaultIndex() to ComboboxModel.

chrome/browser/ui/views/bookmarks/bookmark_bubble_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/bookmarks/bookmark_bubble_view.h"
 
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 144 matching lines @@
       this, l10n_util::GetStringUTF16(IDS_BOOKMARK_BUBBLE_OPTIONS));
 
   close_button_ = new views::NativeTextButton(
       this, l10n_util::GetStringUTF16(IDS_DONE));
   close_button_->SetIsDefault(true);
 
   views::Label* combobox_label = new views::Label(
       l10n_util::GetStringUTF16(IDS_BOOKMARK_BUBBLE_FOLDER_TEXT));
 
   parent_combobox_ = new views::Combobox(&parent_model_);
-  parent_combobox_->SetSelectedIndex(parent_model_.node_parent_index());
   parent_combobox_->set_listener(this);
   parent_combobox_->SetAccessibleName(combobox_label->text());
 
   views::Label* title_label = new views::Label(
       l10n_util::GetStringUTF16(
           newly_bookmarked_ ? IDS_BOOKMARK_BUBBLE_PAGE_BOOKMARKED :
                               IDS_BOOKMARK_BUBBLE_PAGE_BOOKMARK));
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   title_label->SetFont(rb.GetFont(ui::ResourceBundle::MediumFont));
   title_label->SetEnabledColor(SkColorSetRGB(6, 45, 117));
@@ skipping 160 matching lines @@
       const BookmarkNode* new_parent =
           parent_model_.GetNodeAt(parent_combobox_->selected_index());
       if (new_parent != node->parent()) {
         content::RecordAction(
             UserMetricsAction("BookmarkBubble_ChangeParent"));
         model->Move(node, new_parent, new_parent->child_count());
       }
     }
   }
 }