Managed bookmarks for supervised users

components/bookmarks/browser/bookmark_utils.cc

 // Copyright 2014 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 "components/bookmarks/browser/bookmark_utils.h"
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 492 matching lines @@
       return true;
   }
   return false;
 }
 
 const BookmarkNode* GetBookmarkNodeByID(const BookmarkModel* model, int64 id) {
   // TODO(sky): TreeNode needs a method that visits all nodes using a predicate.
   return GetNodeByID(model->root_node(), id);
 }
 
+bool IsDescendantOf(const bookmarks::BookmarkNode* node,
+                    const bookmarks::BookmarkNode* root) {
+  return node && node->HasAncestor(root);
+}
+
+bool HasDescendantsOf(const std::vector<const bookmarks::BookmarkNode*>& list,
+                      const bookmarks::BookmarkNode* root) {
+  for (const BookmarkNode* node : list) {
+    if (IsDescendantOf(node, root))
+      return true;
+  }
+  return false;
+}
+
 }  // namespace bookmarks