Reduce SpdyHeaderBlock copies with move semantics.

net/tools/quic/quic_simple_client.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/tools/quic/quic_simple_client.h"
 
+#include <utility>
+
 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_request_info.h"
 #include "net/http/http_response_info.h"
 #include "net/quic/crypto/quic_random.h"
 #include "net/quic/quic_chromium_alarm_factory.h"
 #include "net/quic/quic_chromium_connection_helper.h"
 #include "net/quic/quic_chromium_packet_reader.h"
@@ skipping 232 matching lines @@
                                    bool fin) {
   QuicSpdyClientStream* stream = CreateReliableClientStream();
   if (stream == nullptr) {
     LOG(DFATAL) << "stream creation failed!";
     return;
   }
   SpdyHeaderBlock header_block;
   CreateSpdyHeadersFromHttpRequest(headers, headers.extra_headers, net::HTTP2,
                                    true, &header_block);
   stream->set_visitor(this);
-  stream->SendRequest(header_block, body, fin);
+  stream->SendRequest(std::move(header_block), body, fin);
   if (FLAGS_enable_quic_stateless_reject_support) {
     // Record this in case we need to resend.
     auto new_headers = new HttpRequestInfo;
     *new_headers = headers;
     auto data_to_resend =
         new ClientQuicDataToResend(new_headers, body, fin, this);
     MaybeAddQuicDataToResend(data_to_resend);
   }
 }
 
@@ skipping 135 matching lines @@
   session()->connection()->ProcessUdpPacket(local_address, peer_address,
                                             packet);
   if (!session()->connection()->connected()) {
     return false;
   }
 
   return true;
 }
 
 }  // namespace net