bookmarks: Move BookmarkNode into 'bookmarks' namespace.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_view.mm

 // Copyright (c) 2011 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.
 
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_view.h"
 
 #include "chrome/browser/profiles/profile.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_folder_target.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #include "components/bookmarks/browser/bookmark_pasteboard_helper_mac.h"
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "content/public/browser/user_metrics.h"
 
 using base::UserMetricsAction;
 using bookmarks::BookmarkModel;
+using bookmarks::BookmarkNode;
 
 #import "third_party/mozilla/NSPasteboard+Utils.h"
 
 @interface BookmarkBarFolderView()
 
 @property(readonly, nonatomic) id<BookmarkButtonControllerProtocol> controller;
 
 - (void)setDropIndicatorShown:(BOOL)flag;
 
 @end
@@ skipping 174 matching lines @@
     [dropIndicator_ setBorderType:NSLineBorder];
     [dropIndicator_ setAlphaValue:0.85];
     [self addSubview:dropIndicator_];
   } else {
     [dropIndicator_ removeFromSuperview];
     dropIndicator_.reset();
   }
 }
 
 @end