Make the download's response headers available in the DownloadItem

content/public/browser/download_item.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.
 //
 // Each download is represented by a DownloadItem, and all DownloadItems
 // are owned by the DownloadManager which maintains a global list of all
 // downloads. DownloadItems are created when a user initiates a download,
 // and exist for the duration of the browser life time.
 //
 // Download observers:
@@ skipping 227 matching lines @@
   // URL of the top level frame at the time the download was initiated.
   virtual const GURL& GetTabUrl() const = 0;
 
   // Referrer URL for top level frame.
   virtual const GURL& GetTabReferrerUrl() const = 0;
 
   // For downloads initiated via <a download>, this is the suggested download
   // filename from the download attribute.
   virtual std::string GetSuggestedFilename() const = 0;
 
+  // Returns the HTTP response code. This is 0 when the response has not yet
+  // been received or if the response code text could not be parsed.
+  virtual int GetResponseCode() const = 0;
+
   // Content-Disposition header value from HTTP response.
   virtual std::string GetContentDisposition() const = 0;
 
   // Effective MIME type of downloaded content.
   virtual std::string GetMimeType() const = 0;
 
   // Content-Type header value from HTTP response. May be different from
   // GetMimeType() if a different effective MIME type was chosen after MIME
   // sniffing.
   virtual std::string GetOriginalMimeType() const = 0;
@@ skipping 182 matching lines @@
   // return |name|. Has no effect on the final target filename.
   virtual void SetDisplayName(const base::FilePath& name) = 0;
 
   // Debug/testing -------------------------------------------------------------
   virtual std::string DebugString(bool verbose) const = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_ITEM_H_