bookmarks: Move recently_used_folders_combo_model* into c/b/ui/bookmarks/ directory.

chrome/browser/bookmarks/recently_used_folders_combo_model.h

-// 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.
-
-#ifndef CHROME_BROWSER_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_
-#define CHROME_BROWSER_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "ui/base/models/combobox_model.h"
-
-class BookmarkModel;
-class BookmarkNode;
-
-// Model for the combobox showing the list of folders to choose from. The
-// list always contains the Bookmarks Bar, Other Bookmarks and the parent
-// folder. The list also contains an extra item that shows the text
-// "Choose Another Folder...".
-class RecentlyUsedFoldersComboModel : public ui::ComboboxModel {
- public:
-  RecentlyUsedFoldersComboModel(BookmarkModel* model, const BookmarkNode* node);
-  virtual ~RecentlyUsedFoldersComboModel();
-
-  // Overridden from ui::ComboboxModel:
-  virtual int GetItemCount() const OVERRIDE;
-  virtual string16 GetItemAt(int index) OVERRIDE;
-  virtual bool IsItemSeparatorAt(int index) OVERRIDE;
-  virtual int GetDefaultIndex() const OVERRIDE;
-
-  // If necessary this function moves |node| into the corresponding folder for
-  // the given |selected_index|.
-  void MaybeChangeParent(const BookmarkNode* node, int selected_index);
-
- private:
-  // Returns the node at the specified |index|.
-  const BookmarkNode* GetNodeAt(int index);
-
-  // Removes |node| from |items_|. Does nothing if |node| is not in |items_|.
-  void RemoveNode(const BookmarkNode* node);
-
-  struct Item;
-  std::vector<Item> items_;
-
-  BookmarkModel* bookmark_model_;
-
-  // The index of the original parent folder.
-  int node_parent_index_;
-
-  DISALLOW_COPY_AND_ASSIGN(RecentlyUsedFoldersComboModel);
-};
-
-#endif  // CHROME_BROWSER_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_