bookmarks: Move BookmarkNode into 'bookmarks' namespace.

chrome/browser/ui/cocoa/bookmarks/bookmark_tree_browser_cell.h

 // Copyright (c) 2010 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_COCOA_BOOKMARKS_BOOKMARK_TREE_BROWSER_CELL_H_
 #define CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_TREE_BROWSER_CELL_H_
 
 #import <Cocoa/Cocoa.h>
 
+namespace bookmarks {
 class BookmarkNode;
+}
 
 // Provides a custom cell as used in the BookmarkEditor.xib's folder tree
 // browser view.  This cell customization adds target and action support
 // not provided by the NSBrowserCell as well as contextual information
 // identifying the bookmark node being edited and the column matrix
 // control in which is contained the cell.
 @interface BookmarkTreeBrowserCell : NSBrowserCell {
  @private
-  const BookmarkNode* bookmarkNode_;  // weak
+  const bookmarks::BookmarkNode* bookmarkNode_;  // weak
   NSMatrix* matrix_;  // weak
   id target_;  // weak
   SEL action_;
 }
 
 @property(nonatomic, assign) NSMatrix* matrix;
 @property(nonatomic, assign) id target;
 @property(nonatomic, assign) SEL action;
 
-- (const BookmarkNode*)bookmarkNode;
-- (void)setBookmarkNode:(const BookmarkNode*)bookmarkNode;
+- (const bookmarks::BookmarkNode*)bookmarkNode;
+- (void)setBookmarkNode:(const bookmarks::BookmarkNode*)bookmarkNode;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_TREE_BROWSER_CELL_H_