Adds back BookmarkNode::IsVisible. Turns out we want to conditionally

chrome/browser/ui/cocoa/bookmarks/bookmark_editor_base_controller.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.
 
 #include <stack>
 
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_editor_base_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
@@ skipping 438 matching lines @@
   }
   DCHECK([path length] == stackSize);
   return path;
 }
 
 - (NSMutableArray*)addChildFoldersFromNode:(const BookmarkNode*)node {
   NSMutableArray* childFolders = nil;
   int childCount = node->child_count();
   for (int i = 0; i < childCount; ++i) {
     const BookmarkNode* childNode = node->GetChild(i);
-    if (childNode->is_folder()) {
+    if (childNode->is_folder() && childNode->IsVisible()) {
       NSString* childName = base::SysUTF16ToNSString(childNode->GetTitle());
       NSMutableArray* children = [self addChildFoldersFromNode:childNode];
       BookmarkFolderInfo* folderInfo =
           [BookmarkFolderInfo bookmarkFolderInfoWithFolderName:childName
                                                     folderNode:childNode
                                                       children:children];
       if (!childFolders)
         childFolders = [NSMutableArray arrayWithObject:folderInfo];
       else
         [childFolders addObject:folderInfo];
@@ skipping 188 matching lines @@
 }
 
 // Implementing isEqual: allows the NSTreeController to preserve the selection
 // and open/shut state of outline items when the data changes.
 - (BOOL)isEqual:(id)other {
   return [other isKindOfClass:[BookmarkFolderInfo class]] &&
       folderNode_ == [(BookmarkFolderInfo*)other folderNode];
 }
 
 @end