Change some snapshot- or temporary-file related changes to use ScopedFile

webkit/fileapi/file_system_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_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/platform_file.h"
-#include "webkit/fileapi/file_snapshot_policy.h"
+#include "webkit/blob/scoped_file.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace base {
 class Time;
 }
 
 namespace fileapi {
 
 class FileSystemOperationContext;
 class FileSystemURL;
@@ skipping 141 matching lines @@
   // See header comments for AsyncFileUtil::DeleteDirectory() for more details.
   virtual base::PlatformFileError DeleteDirectory(
       FileSystemOperationContext* context,
       const FileSystemURL& url) = 0;
 
   // Creates a local snapshot file for a given |url| and returns the
   // metadata and platform path of the snapshot file via |callback|.
   //
   // See header comments for AsyncFileUtil::CreateSnapshotFile() for
   // more details.
-  virtual base::PlatformFileError CreateSnapshotFile(
+  virtual webkit_blob::ScopedFile CreateSnapshotFile(
       FileSystemOperationContext* context,
       const FileSystemURL& url,
+      base::PlatformFileError* error,
       base::PlatformFileInfo* file_info,
-      base::FilePath* platform_path,
-      SnapshotFilePolicy* policy) = 0;
+      base::FilePath* platform_path) = 0;
 
  protected:
   FileSystemFileUtil() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_