Do not send or store cookies for extensions autoupdate http requests....

chrome/browser/net/url_fetcher.h

 // Copyright (c) 2009 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.
 //
 // This file contains URLFetcher, a wrapper around URLRequest that handles
 // low-level details like thread safety, ref counting, and incremental buffer
 // reading.  This is useful for callers who simply want to get the data from a
 // URL and don't care about all the nitty-gritty details.
 
 #ifndef CHROME_BROWSER_URL_FETCHER_H_
@@ skipping 108 matching lines @@
   // call this before the request is started.  |upload_content_type| is the MIME
   // type of the content, while |upload_content| is the data to be sent (the
   // Content-Length header value will be set to the length of this data).
   void set_upload_data(const std::string& upload_content_type,
                        const std::string& upload_content);
 
   // Set one or more load flags as defined in net/base/load_flags.h.  Must be
   // called before the request is started.
   void set_load_flags(int load_flags);
 
+  // Returns the current load flags.
+  int load_flags() const;
+
   // Set extra headers on the request.  Must be called before the request
   // is started.
   void set_extra_request_headers(const std::string& extra_request_headers);
 
   // Set the URLRequestContext on the request.  Must be called before the
   // request is started.
   void set_request_context(URLRequestContext* request_context);
 
   // Retrieve the response headers from the request.  Must only be called after
   // the OnURLFetchComplete callback has run.
@@ skipping 24 matching lines @@
   scoped_refptr<Core> core_;
 
   static Factory* factory_;
 
   base::LeakTracker<URLFetcher> leak_tracker_;
 
   DISALLOW_EVIL_CONSTRUCTORS(URLFetcher);
 };
 
 #endif  // CHROME_BROWSER_URL_FETCHER_H_