Add enable-sync-directory-operation to about:flags

webkit/fileapi/syncable/syncable_file_system_util.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 WEBKIT_FILEAPI_SYNCABLE_SYNCABLE_FILE_SYSTEM_UTIL_H_
 #define WEBKIT_FILEAPI_SYNCABLE_SYNCABLE_FILE_SYSTEM_UTIL_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace fileapi {
 class FileSystemContext;
 class FileSystemURL;
 class LocalFileSystemOperation;
 }
 
 namespace sync_file_system {
 
+WEBKIT_STORAGE_EXPORT const char* GetFlagForSyncFileSystemDirectoryOperation();
+
 // Registers a syncable filesystem with the given |service_name|.
 WEBKIT_STORAGE_EXPORT bool RegisterSyncableFileSystem(
     const std::string& service_name);
 
 // Revokes the syncable filesystem that was registered with |service_name|.
 WEBKIT_STORAGE_EXPORT bool RevokeSyncableFileSystem(
     const std::string& service_name);
 
 // Returns the root URI of the syncable filesystem that can be specified by a
 // pair of |origin| and |service_name|.
@@ skipping 62 matching lines @@
 // It is disabled by default but can be overridden by a command-line switch
 // (--enable-sync-directory-operations) or by calling
 // SetEnableSyncDirectoryOperation().
 // TODO(nhiroki): This method should be used only for testing and should go
 // away when we fully support directory operations. (http://crbug.com/161442)
 WEBKIT_STORAGE_EXPORT bool IsSyncDirectoryOperationEnabled();
 
 }  // namespace sync_file_system
 
 #endif  // WEBKIT_FILEAPI_SYNCABLE_SYNCABLE_FILE_SYSTEM_UTIL_H_