Enable cross-filesystem moves and copies.

webkit/fileapi/local_file_system_file_util.h

 // Copyright (c) 2011 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_LOCAL_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_LOCAL_FILE_SYSTEM_FILE_UTIL_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 59 matching lines @@
       const FilePath& file_path,
       bool exclusive,
       bool recursive);
 
   virtual PlatformFileError CopyOrMoveFile(
       FileSystemOperationContext* context,
       const FilePath& src_file_path,
       const FilePath& dest_file_path,
       bool copy);
 
+  virtual PlatformFileError CopyInForeignFile(
+        FileSystemOperationContext* context,
+        const FilePath& src_file_path,
+        const FilePath& dest_file_path);
+
   virtual PlatformFileError DeleteFile(
       FileSystemOperationContext* context,
       const FilePath& file_path);
 
   virtual PlatformFileError DeleteSingleDirectory(
       FileSystemOperationContext* context,
       const FilePath& file_path);
 
   virtual PlatformFileError Touch(
       FileSystemOperationContext* context,
@@ skipping 34 matching lines @@
   FilePath GetLocalPath(
       FileSystemOperationContext* context,
       const GURL& origin_url,
       FileSystemType type,
       const FilePath& virtual_path);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_LOCAL_FILE_SYSTEM_FILE_UTIL_H_