Revert 152213 - Replace the DownloadFileManager with direct ownership of DownloadFile.

content/browser/download/download_file_factory.h

Index: content/browser/download/download_file_factory.h
===================================================================
--- content/browser/download/download_file_factory.h	(revision 152281)
+++ content/browser/download/download_file_factory.h	(working copy)
@@ -1,44 +0,0 @@
-// 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_BROWSER_DOWNLOAD_DOWNLOAD_FILE_FACTORY_H_
-#define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_FACTORY_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "content/common/content_export.h"
-#include "googleurl/src/gurl.h"
-
-namespace net {
-class BoundNetLog;
-}
-
-namespace content {
-
-struct DownloadSaveInfo;
-
-class ByteStreamReader;
-class DownloadDestinationObserver;
-class DownloadFile;
-class DownloadManager;
-
-class CONTENT_EXPORT DownloadFileFactory {
- public:
-  virtual ~DownloadFileFactory();
-
-  virtual content::DownloadFile* CreateFile(
-    const content::DownloadSaveInfo& save_info,
-    GURL url,
-    GURL referrer_url,
-    int64 received_bytes,
-    bool calculate_hash,
-    scoped_ptr<content::ByteStreamReader> stream,
-    const net::BoundNetLog& bound_net_log,
-    base::WeakPtr<content::DownloadDestinationObserver> observer);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_FILE_FACTORY_H_