Use HttpRequestHeaders for extra_headers.

net/http/http_transaction_unittest.h

 // Copyright (c) 2006-2009 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.
 
 #ifndef NET_HTTP_HTTP_TRANSACTION_UNITTEST_H_
 #define NET_HTTP_HTTP_TRANSACTION_UNITTEST_H_
 
 #include "net/http/http_transaction.h"
 
 #include <algorithm>
@@ skipping 79 matching lines @@
 };
 
 //-----------------------------------------------------------------------------
 // mock http request
 
 class MockHttpRequest : public net::HttpRequestInfo {
  public:
   explicit MockHttpRequest(const MockTransaction& t) {
     url = GURL(t.url);
     method = t.method;
-    extra_headers = t.request_headers;
+    extra_headers.AddHeadersFromString(t.request_headers);
     load_flags = t.load_flags;
   }
 };
 
 //-----------------------------------------------------------------------------
 // use this class to test completely consuming a transaction
 
 class TestTransactionConsumer : public CallbackRunner< Tuple1<int> > {
  public:
   explicit TestTransactionConsumer(net::HttpTransactionFactory* factory)
@@ skipping 232 matching lines @@
 };
 
 
 //-----------------------------------------------------------------------------
 // helpers
 
 // read the transaction completely
 int ReadTransaction(net::HttpTransaction* trans, std::string* result);
 
 #endif  // NET_HTTP_HTTP_TRANSACTION_UNITTEST_H_