chrome: Cleanup class/struct forward declarations

chrome/browser/ui/views/bookmarks/bookmark_editor_view.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_UI_VIEWS_BOOKMARKS_BOOKMARK_EDITOR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_EDITOR_VIEW_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 16 matching lines @@
 
 namespace views {
 class Label;
 class LabelButton;
 class MenuRunner;
 class TreeView;
 }
 
 class BookmarkEditorViewTest;
 class GURL;
-class Menu;
 class Profile;
 
 // View that allows the user to edit a bookmark/starred URL. The user can
 // change the URL, title and where the bookmark appears as well as adding
 // new folders and changing the name of other folders. The editor is used for
 // both editing a url bookmark, as well as editing a folder bookmark when
 // created from 'Bookmark all tabs'.
 //
 // Edits are applied to the BookmarkModel when the user presses 'OK'.
 //
@@ skipping 222 matching lines @@
   // Is the tree shown?
   bool show_tree_;
 
   // List of deleted bookmark folders.
   std::vector<int64_t> deletes_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkEditorView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_EDITOR_VIEW_H_