[SyncFS] Add generic result reciever

chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h

 // Copyright 2013 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_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_TEST_UTIL_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_TEST_UTIL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
 #include "chrome/browser/sync_file_system/sync_status_code.h"
@@ skipping 20 matching lines @@
 void ExpectEquivalentMetadata(const FileMetadata& left,
                               const FileMetadata& right);
 void ExpectEquivalentTrackers(const FileTracker& left,
                               const FileTracker& right);
 void ExpectEquivalentResourceAndMetadata(
     const google_apis::FileResource& resource,
     const FileMetadata& metadata);
 void ExpectEquivalentMetadataAndTracker(const FileMetadata& metadata,
                                         const FileTracker& tracker);
 
-void SyncStatusResultCallback(SyncStatusCode* status_out,
-                              SyncStatusCode status);
-void DatabaseCreateResultCallback(SyncStatusCode* status_out,
-                                  scoped_ptr<MetadataDatabase>* database_out,
-                                  SyncStatusCode status,
-                                  scoped_ptr<MetadataDatabase> database);
-void ResourceEntryResultCallback(
-    google_apis::GDataErrorCode* error_out,
-    scoped_ptr<google_apis::ResourceEntry>* entry_out,
-    google_apis::GDataErrorCode error,
-    scoped_ptr<google_apis::ResourceEntry> entry);
-
 }  // namespace test_util
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_TEST_UTIL_H_