Update from https://crrev.com/311076

net/http/http_network_transaction.h

 // Copyright (c) 2012 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_NETWORK_TRANSACTION_H_
 #define NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 167 matching lines @@
 
   void BuildRequestHeaders(bool using_proxy);
 
   // Writes a log message to help debugging in the field when we block a proxy
   // response to a CONNECT request.
   void LogBlockedTunnelResponse(int response_code) const;
 
   // Called to handle a client certificate request.
   int HandleCertificateRequest(int error);
 
+  // Called wherever ERR_HTTP_1_1_REQUIRED or
+  // ERR_PROXY_HTTP_1_1_REQUIRED has to be handled.
+  int HandleHttp11Required(int error);
+
   // Called to possibly handle a client authentication error.
   void HandleClientAuthError(int error);
 
   // Called to possibly recover from an SSL handshake error.  Sets next_state_
   // and returns OK if recovering from the error.  Otherwise, the same error
   // code is returned.
   int HandleSSLHandshakeError(int error);
 
   // Called to possibly recover from the given error.  Sets next_state_ and
   // returns OK if recovering from the error.  Otherwise, the same error code
@@ skipping 120 matching lines @@
 
   BeforeNetworkStartCallback before_network_start_callback_;
   BeforeProxyHeadersSentCallback before_proxy_headers_sent_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpNetworkTransaction);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_TRANSACTION_H_