Changes BookmarkModelAssociator not to fail if mobile folder doesn't

chrome/browser/sync/glue/bookmark_model_associator.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_BOOKMARK_MODEL_ASSOCIATOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_BOOKMARK_MODEL_ASSOCIATOR_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 98 matching lines @@
   // Matches up the bookmark model and the sync model to build model
   // associations.
   bool BuildAssociations(SyncError* error);
 
   // Associate a top-level node of the bookmark model with a permanent node in
   // the sync domain.  Such permanent nodes are identified by a tag that is
   // well known to the server and the client, and is unique within a particular
   // user's share.  For example, "other_bookmarks" is the tag for the Other
   // Bookmarks folder.  The sync nodes are server-created.
   bool AssociateTaggedPermanentNode(const BookmarkNode* permanent_node,
-                                    const std::string& tag);
+                                    const std::string& tag) WARN_UNUSED_RESULT;
 
   // Compare the properties of a pair of nodes from either domain.
   bool NodesMatch(const BookmarkNode* bookmark,
                   const sync_api::BaseNode* sync_node) const;
 
   BookmarkModel* bookmark_model_;
   sync_api::UserShare* user_share_;
   UnrecoverableErrorHandler* unrecoverable_error_handler_;
   BookmarkIdToSyncIdMap id_map_;
   SyncIdToBookmarkNodeMap id_map_inverse_;
   // Stores sync ids for dirty associations.
   DirtyAssociationsSyncIds dirty_associations_sync_ids_;
 
   // Used to post PersistAssociation tasks to the current message loop and
   // guarantees no invocations can occur if |this| has been deleted. (This
   // allows this class to be non-refcounted).
   ScopedRunnableMethodFactory<BookmarkModelAssociator> persist_associations_;
 
   int number_of_new_sync_nodes_created_at_association_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkModelAssociator);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_BOOKMARK_MODEL_ASSOCIATOR_H_