Shift passage of FileStream in downloads system to be by scoped_ptr<>.

content/public/browser/download_save_info.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 CONTENT_PUBLIC_BROWSER_DOWNLOAD_SAVE_INFO_H_
 #define CONTENT_PUBLIC_BROWSER_DOWNLOAD_SAVE_INFO_H_
 
 #include "base/file_path.h"
 #include "base/memory/linked_ptr.h"
 #include "content/common/content_export.h"
@@ skipping 12 matching lines @@
   // If non-empty, contains the full target path of the download that has been
   // determined prior to download initiation. This is considered to be a trusted
   // path.
   FilePath file_path;
 
   // If non-empty, contains an untrusted filename suggestion. This can't contain
   // a path (only a filename), and is only effective if |file_path| is empty.
   string16 suggested_name;
 
   // If non-NULL, contains the source data stream for the file contents.
-  linked_ptr<net::FileStream> file_stream;
+  scoped_ptr<net::FileStream> file_stream;
 
   // The file offset at which to start the download.  May be 0.
   int64 offset;
 
   // The state of the hash at the start of the download.  May be empty.
   std::string hash_state;
 
   // If |prompt_for_save_location| is true, and |file_path| is empty, then
   // the user will be prompted for a location to save the download. Otherwise,
   // the location will be determined automatically using |file_path| as a
   // basis if |file_path| is not empty.
   // |prompt_for_save_location| defaults to false.
   bool prompt_for_save_location;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DownloadSaveInfo);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_SAVE_INFO_H_