Revert of Remove deprecated methods from Pickle.

net/http/http_response_headers.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_RESPONSE_HEADERS_H_
 #define NET_HTTP_HTTP_RESPONSE_HEADERS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 54 matching lines @@
   // (Note that line continuations should have already been joined;
   // see HttpUtil::AssembleRawHeaders)
   //
   // HttpResponseHeaders does not perform any encoding changes on the input.
   //
   explicit HttpResponseHeaders(const std::string& raw_headers);
 
   // Initializes from the representation stored in the given pickle.  The data
   // for this object is found relative to the given pickle_iter, which should
   // be passed to the pickle's various Read* methods.
-  explicit HttpResponseHeaders(PickleIterator* pickle_iter);
+  HttpResponseHeaders(const Pickle& pickle, PickleIterator* pickle_iter);
 
   // Appends a representation of this object to the given pickle.
   // The options argument can be a combination of PersistOptions.
   void Persist(Pickle* pickle, PersistOptions options);
 
   // Performs header merging as described in 13.5.3 of RFC 2616.
   void Update(const HttpResponseHeaders& new_headers);
 
   // Removes all instances of a particular header.
   void RemoveHeader(const std::string& name);
@@ skipping 323 matching lines @@
 
   // The parsed http version number (not normalized).
   HttpVersion parsed_http_version_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpResponseHeaders);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_RESPONSE_HEADERS_H_