Reduce SpdyHeaderBlock copies with move semantics in shared code.

net/tools/quic/test_tools/quic_test_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/test_tools/quic_test_client.h"
 
 #include <memory>
+#include <utility>
 
 #include "base/time/time.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "net/cert/cert_verify_result.h"
 #include "net/cert/x509_certificate.h"
 #include "net/quic/crypto/proof_verifier.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/quic_server_id.h"
 #include "net/quic/test_tools/quic_connection_peer.h"
@@ skipping 253 matching lines @@
       // We have tests which rely on sending a non-standards-compliant
       // T-E header.
       string encoding;
       headers->GetAllOfHeaderAsString("transfer-encoding", &encoding);
       spdy_headers.insert(std::make_pair("transfer-encoding", encoding));
     }
     if (static_cast<StringPiece>(spdy_headers[":authority"]).empty()) {
       // HTTP/2 requests should include the :authority pseudo hader.
       spdy_headers[":authority"] = client_->server_id().host();
     }
-    ret = stream->SendRequest(spdy_headers, body, fin);
+    ret = stream->SendRequest(std::move(spdy_headers), body, fin);
     ++num_requests_;
   } else {
     stream->WriteOrBufferBody(body.as_string(), fin, delegate);
     ret = body.length();
   }
   if (FLAGS_enable_quic_stateless_reject_support) {
     BalsaHeaders* new_headers = nullptr;
     if (headers) {
       new_headers = new BalsaHeaders;
       new_headers->CopyFrom(*headers);
@@ skipping 377 matching lines @@
   CHECK(message);
   message->headers()->SetRequestVersion(
       HTTPMessage::VersionToString(HttpConstants::HTTP_1_1));
   message->headers()->SetRequestMethod(
       HTTPMessage::MethodToString(HttpConstants::GET));
   message->headers()->SetRequestUri(uri);
 }
 
 }  // namespace test
 }  // namespace net