Cleanup referrer_charset

content/shell/shell_download_manager_delegate.cc

 // 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.
 
 #include "content/shell/shell_download_manager_delegate.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 52 matching lines @@
     callback.Run(download->GetForcedFilePath(),
                  DownloadItem::TARGET_DISPOSITION_OVERWRITE,
                  DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
                  download->GetForcedFilePath());
     return true;
   }
 
   FilePath generated_name = net::GenerateFileName(
       download->GetURL(),
       download->GetContentDisposition(),
-      download->GetReferrerCharset(),
+      EmptyString(),
       download->GetSuggestedFilename(),
       download->GetMimeType(),
       "download");
 
   BrowserThread::PostTask(
       BrowserThread::FILE,
       FROM_HERE,
       base::Bind(
           &ShellDownloadManagerDelegate::GenerateFilename,
           this, download->GetId(), callback, generated_name,
@@ skipping 103 matching lines @@
       item->GetId(), --last_download_db_handle_);
 }
 
 void ShellDownloadManagerDelegate::SetDownloadBehaviorForTesting(
     const FilePath& default_download_path) {
   default_download_path_ = default_download_path;
   suppress_prompting_ = true;
 }
 
 }  // namespace content