[Sync] Refactor sync datatype error handling.

chrome/browser/sync/glue/password_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_PASSWORD_MODEL_ASSOCIATOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_ASSOCIATOR_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 38 matching lines @@
   typedef std::vector<webkit_glue::PasswordForm> PasswordVector;
 
   static syncable::ModelType model_type() { return syncable::PASSWORDS; }
   PasswordModelAssociator(ProfileSyncService* sync_service,
                           PasswordStore* password_store);
   virtual ~PasswordModelAssociator();
 
   // PerDataTypeAssociatorInterface implementation.
   //
   // Iterates through the sync model looking for matched pairs of items.
-  virtual bool AssociateModels();
+  virtual bool AssociateModels(SyncError* error);
 
   // Delete all password nodes.
   bool DeleteAllNodes(sync_api::WriteTransaction* trans);
 
   // Clears all associations.
-  virtual bool DisassociateModels();
+  virtual bool DisassociateModels(SyncError* error);
 
   // The has_nodes out param is true if the sync model has nodes other
   // than the permanent tagged nodes.
   virtual bool SyncModelHasUserCreatedNodes(bool* has_nodes);
 
   // See ModelAssociator interface.
   virtual void AbortAssociation();
 
   // See ModelAssociator interface.
   virtual bool CryptoReadyIfNecessary();
@@ skipping 62 matching lines @@
 
   PasswordToSyncIdMap id_map_;
   SyncIdToPasswordMap id_map_inverse_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordModelAssociator);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_ASSOCIATOR_H_