Adding FileUtil::CreateSnapshotFile

webkit/fileapi/local_file_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_LOCAL_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_LOCAL_FILE_UTIL_H_
 
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/file_util_proxy.h"
 #include "base/logging.h"
 #include "base/platform_file.h"
+#include "webkit/blob/shareable_file_reference.h"
 #include "webkit/fileapi/fileapi_export.h"
 #include "webkit/fileapi/file_system_file_util.h"
 #include "webkit/fileapi/file_system_types.h"
 
 namespace base {
 struct PlatformFileInfo;
 class Time;
 }
 
 class GURL;
@@ skipping 71 matching lines @@
   virtual PlatformFileError CopyInForeignFile(
         FileSystemOperationContext* context,
         const FilePath& src_file_path,
         const FileSystemURL& dest_url) OVERRIDE;
   virtual PlatformFileError DeleteFile(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
   virtual PlatformFileError DeleteSingleDirectory(
       FileSystemOperationContext* context,
       const FileSystemURL& url) OVERRIDE;
+  virtual scoped_refptr<webkit_blob::ShareableFileReference>
+      CreateSnapshotFile(FileSystemOperationContext* context,
+                         const FileSystemURL& url,
+                         base::PlatformFileError* result,
+                         base::PlatformFileInfo* file_info,
+                         FilePath* platform_path) OVERRIDE;
 
  private:
   // Given the filesystem url, produces a real, full local path for the
   // underlying filesystem (which is usually the native filesystem).
   FileSystemURL GetLocalPath(
       FileSystemOperationContext* context,
       const FileSystemURL& url);
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_LOCAL_FILE_UTIL_H_