iwyu: Include stringprintf.h where appropriate, part 1.

net/http/http_stream_parser.cc

 // Copyright (c) 2011 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_stream_parser.h"
 
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
+#include "base/stringprintf.h"
 #include "base/string_util.h"
 #include "net/base/address_list.h"
 #include "net/base/auth.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ssl_cert_request_info.h"
 #include "net/http/http_net_log_params.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_util.h"
@@ skipping 696 matching lines @@
 void HttpStreamParser::GetSSLCertRequestInfo(
     SSLCertRequestInfo* cert_request_info) {
   if (request_->url.SchemeIs("https") && connection_->socket()) {
     SSLClientSocket* ssl_socket =
         static_cast<SSLClientSocket*>(connection_->socket());
     ssl_socket->GetSSLCertRequestInfo(cert_request_info);
   }
 }
 
 }  // namespace net