[Downloads] Factor out request handling logic between DRH and UD.

content/browser/download/download_create_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_BROWSER_DOWNLOAD_DOWNLOAD_CREATE_INFO_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_CREATE_INFO_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/time/time.h"
 #include "content/browser/download/download_file.h"
 #include "content/browser/download/download_request_handle.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/download_save_info.h"
 #include "net/log/net_log.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace content {
 
 // Used for informing the download manager of a new download, since we don't
 // want to pass |DownloadItem|s between threads.
 struct CONTENT_EXPORT DownloadCreateInfo {
   DownloadCreateInfo(const base::Time& start_time,
                      int64 total_bytes,
                      const net::BoundNetLog& bound_net_log,
-                     bool has_user_gesture,
-                     ui::PageTransition transition_type,
                      scoped_ptr<DownloadSaveInfo> save_info);
   DownloadCreateInfo();
   ~DownloadCreateInfo();
 
   std::string DebugString() const;
 
   // The URL from which we are downloading. This is the final URL after any
   // redirection by the server for |url_chain|.
   const GURL& url() const;
 
@@ skipping 43 matching lines @@
   std::string etag;
 
   // The download file save info.
   scoped_ptr<DownloadSaveInfo> save_info;
 
   // The remote IP address where the download was fetched from.  Copied from
   // UrlRequest::GetSocketAddress().
   std::string remote_address;
 
   // The handle to the URLRequest sourcing this download.
-  DownloadRequestHandle request_handle;
+  scoped_ptr<DownloadRequestHandleInterface> request_handle;
 
   // The request's |BoundNetLog|, for "source_dependency" linking with the
   // download item's.
   const net::BoundNetLog request_bound_net_log;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DownloadCreateInfo);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_CREATE_INFO_H_