BookmarkClient can add extra nodes to BookmarkModel.

components/bookmarks/browser/bookmark_client.h

 // 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.
 
 #ifndef COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_
 #define COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_
 
 #include <set>
+#include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "components/favicon_base/favicon_callback.h"
 
 class BookmarkNode;
 class GURL;
 
@@ skipping 37 matching lines @@
       NodeTypedCountPairs* node_typed_count_pairs);
 
   // Returns whether the embedder wants permanent node of type |node_type|
   // to always be visible or to only show them when not empty.
   virtual bool IsPermanentNodeVisible(int node_type) = 0;
 
   // Wrapper around RecordAction defined in base/metrics/user_metrics.h
   // that ensure that the action is posted from the correct thread.
   virtual void RecordAction(const base::UserMetricsAction& action) = 0;
 
+  // Returns the domain name for the managed bookmarks folder. This domain is
+  // displayed only when the managed bookmarks come from a management domain;
+  // if they come from platform or MDM policy then a default name should be
+  // used instead.
+  virtual std::string GetManagedBookmarksDomain();
+
  protected:
   virtual ~BookmarkClient() {}
 };
 
 #endif  // COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_