Joins Cookie header components correctly.

net/quic/spdy_utils.cc

 // Copyright (c) 2013 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.
 
 #include "net/quic/spdy_utils.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/stl_util.h"
@@ skipping 111 matching lines @@
 
     if (std::any_of(name.begin(), name.end(), base::IsAsciiUpper<char>)) {
       DLOG(ERROR) << "Malformed header: Header name " << name
                   << " contains upper-case characters.";
       return false;
     }
 
     auto iter = headers->find(name);
     if (iter == headers->end()) {
       (*headers)[name] = p.second;
+    } else if (name == "cookie") {
+      // Obeys section 8.1.2.5 in RFC 7540 for cookie reconstruction.
+      headers->ReplaceOrAppendHeader(
+          name, base::StringPrintf("%s; %s", iter->second.as_string().c_str(),
+                                   p.second.c_str()));
     } else {
       // This header had multiple values, so it must be reconstructed.
       string value = base::StringPrintf(
           "%s%c%s", iter->second.as_string().c_str(), '\0', p.second.c_str());
       headers->ReplaceOrAppendHeader(name, value);
     }
   }
 
   if (ContainsKey(*headers, "content-length")) {
     // Check whether multiple values are consistent.
@@ skipping 101 matching lines @@
   return GURL(GetUrlFromHeaderBlock(headers)).host();
 }
 
 // static
 bool SpdyUtils::UrlIsValid(const SpdyHeaderBlock& headers) {
   string url(GetUrlFromHeaderBlock(headers));
   return url != "" && GURL(url).is_valid();
 }
 
 }  // namespace net