Deletes dead code.

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>
@@ skipping 1029 matching lines @@
   // underflow.
   ASSERT_LE(relative_margin, 1);
   ASSERT_GE(relative_margin, 0);
 
   T absolute_margin = expected * relative_margin;
 
   EXPECT_GE(expected + absolute_margin, actual);
   EXPECT_LE(expected - absolute_margin, actual);
 }
 
+template <typename T>
+QuicHeaderList AsHeaderList(const T& container) {
+  QuicHeaderList l;
+  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;
+}
+
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_