Remove QuicFrameList, because it's unused with the new QuicStreamSequencer.

net/quic/test_tools/quic_stream_sequencer_peer.cc

 // Copyright 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
 size_t QuicStreamSequencerPeer::GetNumBufferedBytes(
     QuicStreamSequencer* sequencer) {
   return sequencer->buffered_frames_.BytesBuffered();
 }
 
 // static
-bool QuicStreamSequencerPeer::FrameOverlapsBufferedData(
-    QuicFrameList* buffer,
-    const QuicStreamFrame& frame) {
-  list<QuicFrameList::FrameData>::iterator it =
-      buffer->FindInsertionPoint(frame.offset, frame.frame_length);
-  return buffer->FrameOverlapsBufferedData(frame.offset, frame.frame_length,
-                                           it);
-}
-
-// static
 QuicStreamOffset QuicStreamSequencerPeer::GetCloseOffset(
     QuicStreamSequencer* sequencer) {
   return sequencer->close_offset_;
 }
 
 }  // namespace test
 }  // namespace net