Add QuicStreamSequencerPeer to quic/test_tools, to make stream sequencer

net/quic/test_tools/quic_stream_sequencer_peer.cc

+// Copyright (c) 2014 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/quic/test_tools/quic_stream_sequencer_peer.h"
+
+#include "net/quic/quic_stream_sequencer.h"
+
+using std::map;
+using std::string;
+
+namespace net {
+namespace test {
+
+// static
+map<QuicStreamOffset, string>* QuicStreamSequencerPeer::GetFrames(
+    QuicStreamSequencer* sequencer) {
+  return &(sequencer->frames_);
+}
+
+// static
+QuicStreamOffset QuicStreamSequencerPeer::GetCloseOffset(
+    QuicStreamSequencer* sequencer) {
+  return sequencer->close_offset_;
+}
+
+}  // namespace test
+}  // namespace net