Respect cookies set in a 401 responses when restarting the http transaction....

net/http/http_util.cc

 // Copyright (c) 2006-2008 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.
 
 // The rules for parsing content-types were borrowed from Firefox:
 // http://lxr.mozilla.org/mozilla/source/netwerk/base/src/nsURLHelper.cpp#834
 
 #include "net/http/http_util.h"
 
 #include <algorithm>
@@ skipping 200 matching lines @@
     return false;
 
   // ensure match is suffixed by colon
   if (it + name_len >= headers.end() || it[name_len] != ':')
     return false;
 
   return true;
 }
 
 // static
+std::string HttpUtil::StripHeaders(const std::string& headers,
+                                   const char* const headers_to_remove[],
+                                   size_t headers_to_remove_len) {
+  std::string stripped_headers;
+  net::HttpUtil::HeadersIterator it(headers.begin(), headers.end(), "\r\n");
+
+  while (it.GetNext()) {
+    bool should_remove = false;
+    for (size_t i = 0; i < headers_to_remove_len; ++i) {
+      if (LowerCaseEqualsASCII(it.name_begin(), it.name_end(),
+                               headers_to_remove[i])) {
+        should_remove = true;
+        break;
+      }
+    }
+    if (!should_remove) {
+      // Assume that name and values are on the same line.
+      stripped_headers.append(it.name_begin(), it.values_end());
+      stripped_headers.append("\r\n");
+    }
+  }
+  return stripped_headers;
+}
+
+// static
 bool HttpUtil::IsNonCoalescingHeader(string::const_iterator name_begin,
                                      string::const_iterator name_end) {
   // NOTE: "set-cookie2" headers do not support expires attributes, so we don't
   // have to list them here.
   const char* kNonCoalescingHeaders[] = {
     "date",
     "expires",
     "last-modified",
     "location",  // See bug 1050541 for details
     "retry-after",
@@ skipping 325 matching lines @@
     TrimLWS(&value_begin_, &value_end_);
 
     // bypass empty values.
     if (value_begin_ != value_end_)
       return true;
   }
   return false;
 }
 
 }  // namespace net