Re-land http://codereview.chromium.org/7831056/ and http://codereview.chromium.org/7833042/ .

net/url_request/url_request_http_job.h

 // Copyright (c) 2011 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 NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 151 matching lines @@
   // object.
   void StartTransaction();
   void StartTransactionInternal();
 
   void RecordPerfHistograms(CompletionCause reason);
   void DoneWithRequest(CompletionCause reason);
 
   // Callback functions for Cookie Monster
   void CheckCookiePolicyAndLoad(const CookieList& cookie_list);
   void OnCookiesLoaded(
-      std::string* cookie_line,
-      std::vector<CookieStore::CookieInfo>* cookie_infos);
+      const std::string& cookie_line,
+      const std::vector<CookieStore::CookieInfo>& cookie_infos);
   void DoStartTransaction();
   void OnCookieSaved(bool cookie_status);
   void CookieHandled();
 
   // Some servers send the body compressed, but specify the content length as
   // the uncompressed size. If this is the case, we return true in order
   // to request to work around this non-adherence to the HTTP standard.
   // |rv| is the standard return value of a read function indicating the number
   // of bytes read or, if negative, an error code.
   bool ShouldFixMismatchedContentLength(int rv) const;
@@ skipping 31 matching lines @@
   scoped_ptr<HttpFilterContext> filter_context_;
   ScopedRunnableMethodFactory<URLRequestHttpJob> method_factory_;
   base::WeakPtrFactory<URLRequestHttpJob> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestHttpJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_