Refactor Pickle Read methods to use higher performance PickleIterator.

net/http/http_response_info.cc

 // 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.
 
 #include "net/http/http_response_info.h"
 
 #include "base/logging.h"
 #include "base/pickle.h"
 #include "base/time.h"
 #include "net/base/auth.h"
@@ skipping 98 matching lines @@
   cert_request_info = rhs.cert_request_info;
   ssl_info = rhs.ssl_info;
   headers = rhs.headers;
   vary_data = rhs.vary_data;
   metadata = rhs.metadata;
   return *this;
 }
 
 bool HttpResponseInfo::InitFromPickle(const Pickle& pickle,
                                       bool* response_truncated) {
-  void* iter = NULL;
+  PickleIterator iter(pickle);
 
   // read flags and verify version
   int flags;
   if (!pickle.ReadInt(&iter, &flags))
     return false;
   int version = flags & RESPONSE_INFO_VERSION_MASK;
   if (version < RESPONSE_INFO_MINIMUM_VERSION ||
       version > RESPONSE_INFO_VERSION) {
     DLOG(ERROR) << "unexpected response info version: " << version;
     return false;
@@ skipping 139 matching lines @@
     vary_data.Persist(pickle);
 
   pickle->WriteString(socket_address.host());
   pickle->WriteUInt16(socket_address.port());
 
   if (was_npn_negotiated)
     pickle->WriteString(npn_negotiated_protocol);
 }
 
 }  // namespace net