sync: Add GetAllSyncData to sync/api

chrome/browser/sync/glue/fake_generic_change_processor.h

 // Copyright (c) 2012 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_FAKE_GENERIC_CHANGE_PROCESSOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_FAKE_GENERIC_CHANGE_PROCESSOR_H_
 
 #include "chrome/browser/sync/glue/generic_change_processor.h"
 
 #include "sync/api/sync_error.h"
@@ skipping 10 matching lines @@
   void set_process_sync_changes_error(const syncer::SyncError& error);
   void set_get_sync_data_for_type_error(const syncer::SyncError& error);
   void set_sync_model_has_user_created_nodes(bool has_nodes);
   void set_sync_model_has_user_created_nodes_success(bool success);
   void set_crypto_ready_if_necessary(bool crypto_ready);
 
   // GenericChangeProcessor implementations.
   virtual syncer::SyncError ProcessSyncChanges(
       const tracked_objects::Location& from_here,
       const syncer::SyncChangeList& change_list) OVERRIDE;
-  virtual syncer::SyncError GetSyncDataForType(
+  virtual syncer::SyncError GetAllSyncDataReturnError(
       syncer::ModelType type,
-      syncer::SyncDataList* current_sync_data) OVERRIDE;
+      syncer::SyncDataList* data) const OVERRIDE;
   virtual int GetSyncCountForType(syncer::ModelType type) OVERRIDE;
   virtual bool SyncModelHasUserCreatedNodes(syncer::ModelType type,
                                             bool* has_nodes) OVERRIDE;
   virtual bool CryptoReadyIfNecessary(syncer::ModelType type) OVERRIDE;
 
  private:
   syncer::SyncError process_sync_changes_error_;
   syncer::SyncError get_sync_data_for_type_error_;
   bool sync_model_has_user_created_nodes_;
   bool sync_model_has_user_created_nodes_success_;
   bool crypto_ready_if_necessary_;
-  syncer::ModelType type_;
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_FAKE_GENERIC_CHANGE_PROCESSOR_H_