Update from https://crrev.com/316786

net/url_request/url_request.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_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 263 matching lines @@
     return first_party_url_policy_;
   }
   void set_first_party_url_policy(FirstPartyURLPolicy first_party_url_policy);
 
   // The request method, as an uppercase string.  "GET" is the default value.
   // The request method may only be changed before Start() is called and
   // should only be assigned an uppercase value.
   const std::string& method() const { return method_; }
   void set_method(const std::string& method);
 
-  // Determines the new method of the request afer following a redirect.
-  // |method| is the method used to arrive at the redirect,
-  // |http_status_code| is the status code associated with the redirect.
-  static std::string ComputeMethodForRedirect(const std::string& method,
-                                              int http_status_code);
-
   // The referrer URL for the request.  This header may actually be suppressed
   // from the underlying network request for security reasons (e.g., a HTTPS
   // URL will not be sent as the referrer for a HTTP request).  The referrer
   // may only be changed before Start() is called.
   const std::string& referrer() const { return referrer_; }
   // Referrer is sanitized to remove URL fragment, user name and password.
   void SetReferrer(const std::string& referrer);
 
   // The referrer policy to apply when updating the referrer during redirects.
   // The referrer policy may only be changed before Start() is called.
@@ skipping 526 matching lines @@
 
   // The proxy server used for this request, if any.
   HostPortPair proxy_server_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_