Implement SyncEngine::DumpFiles()

chrome/browser/sync_file_system/drive_backend/drive_backend_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_UTIL_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_
 
+#include <string>
+
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
 #include "webkit/common/blob/scoped_file.h"
 
 namespace google_apis {
 class ChangeResource;
 class FileResource;
 }
 
 namespace leveldb {
 class WriteBatch;
 }
 
 namespace sync_file_system {
 namespace drive_backend {
 
-class FileDetails;
-class FileMetadata;
-class FileTracker;
-class ServiceMetadata;
-
 void PutServiceMetadataToBatch(const ServiceMetadata& service_metadata,
                                leveldb::WriteBatch* batch);
 void PutFileToBatch(const FileMetadata& file, leveldb::WriteBatch* batch);
 void PutTrackerToBatch(const FileTracker& tracker, leveldb::WriteBatch* batch);
 
 void PopulateFileDetailsByFileResource(
     const google_apis::FileResource& file_resource,
     FileDetails* details);
 scoped_ptr<FileMetadata> CreateFileMetadataFromFileResource(
     int64 change_id,
     const google_apis::FileResource& resource);
 scoped_ptr<FileMetadata> CreateFileMetadataFromChangeResource(
     const google_apis::ChangeResource& change);
 
 // Creates a temporary file in |dir_path|.  This must be called on an
 // IO-allowed thread.
 webkit_blob::ScopedFile CreateTemporaryFile();
 
+std::string FileKindToString(FileKind file_kind);
+
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_