[SyncFS] Migrate ServiceMetadata from MDDB to MDDBIndex.

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/sync_file_system/sync_status_code.h"
 #include "google_apis/drive/gdata_errorcode.h"
 
 namespace google_apis {
 class FileResource;
 class ResourceEntry;
 }
 
 namespace sync_file_system {
 namespace drive_backend {
 
 class FileDetails;
 class FileMetadata;
 class FileTracker;
 class MetadataDatabase;
 class ServiceMetadata;
 
 namespace test_util {
 
-void ExpectEquivalentServiceMetadata(const ServiceMetadata& left,
-                                     const ServiceMetadata& right);
 void ExpectEquivalentDetails(const FileDetails& left, const FileDetails& right);
 void ExpectEquivalentMetadata(const FileMetadata& left,
                               const FileMetadata& right);
 void ExpectEquivalentTrackers(const FileTracker& left,
                               const FileTracker& right);
 
 scoped_ptr<FileMetadata> CreateFolderMetadata(const std::string& file_id,
                                               const std::string& title);
 scoped_ptr<FileMetadata> CreateFileMetadata(const std::string& file_id,
                                             const std::string& title,
                                             const std::string& md5);
 scoped_ptr<FileTracker> CreateTracker(const FileMetadata& metadata,
                                       int64 tracker_id,
                                       const FileTracker* parent_tracker);
 scoped_ptr<FileTracker> CreatePlaceholderTracker(
     const std::string& file_id,
     int64 tracker_id,
     const FileTracker* parent_tracker);
 
 }  // namespace test_util
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_TEST_UTIL_H_