Move test only MakeIOVector method to test_tools/quic_test_utils.h. No behavior change.

net/quic/test_tools/quic_test_utils.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.
 //
 // Common utilities for Quic tests
 
 #ifndef NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_
 #define NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cstdint>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
 #include "net/base/ip_address.h"
 #include "net/quic/core/congestion_control/loss_detection_interface.h"
 #include "net/quic/core/congestion_control/send_algorithm_interface.h"
 #include "net/quic/core/quic_client_push_promise_index.h"
 #include "net/quic/core/quic_connection.h"
 #include "net/quic/core/quic_framer.h"
+#include "net/quic/core/quic_iovector.h"
 #include "net/quic/core/quic_protocol.h"
 #include "net/quic/core/quic_sent_packet_manager_interface.h"
 #include "net/quic/core/quic_server_session_base.h"
 #include "net/quic/core/quic_session.h"
 #include "net/quic/core/quic_simple_buffer_allocator.h"
 #include "net/quic/test_tools/mock_clock.h"
 #include "net/quic/test_tools/mock_random.h"
 #include "net/spdy/spdy_framer.h"
 #include "net/tools/quic/quic_dispatcher.h"
 #include "net/tools/quic/quic_per_connection_packet_writer.h"
@@ skipping 1003 matching lines @@
   l.OnHeaderBlockStart();
   size_t total_size = 0;
   for (auto p : container) {
     total_size += p.first.size() + p.second.size();
     l.OnHeader(p.first, p.second);
   }
   l.OnHeaderBlockEnd(total_size);
   return l;
 }
 
+// Utility function that returns an QuicIOVector object wrapped around |str|.
+// // |str|'s data is stored in |iov|.
+inline QuicIOVector MakeIOVector(base::StringPiece str, struct iovec* iov) {
+  iov->iov_base = const_cast<char*>(str.data());
+  iov->iov_len = static_cast<size_t>(str.size());
+  QuicIOVector quic_iov(iov, 1, str.size());
+  return quic_iov;
+}
+
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_