Fix include guards for QUIC files.

net/quic/core/quic_stream_sequencer_buffer.h

 // Copyright (c) 2015 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.
 
-#ifndef NET_QUIC_QUIC_STREAM_SEQUENCER_BUFFER_H_
-#define NET_QUIC_QUIC_STREAM_SEQUENCER_BUFFER_H_
+#ifndef NET_QUIC_CORE_QUIC_STREAM_SEQUENCER_BUFFER_H_
+#define NET_QUIC_CORE_QUIC_STREAM_SEQUENCER_BUFFER_H_
 
 // QuicStreamSequencerBuffer implements QuicStreamSequencerBufferInterface.
 // It is a circular stream buffer with random write and
 // in-sequence read. It consists of a vector of pointers pointing
 // to memory blocks created as needed and a list of Gaps to indicate
 // the missing data between the data already written into the buffer.
 // - Data are written in with offset indicating where it should be in the
 // stream, and the buffer grown as needed (up to the maximum buffer capacity),
 // without expensive copying (extra blocks are allocated).
 // - Data can be read from the buffer if there is no gap before it,
@@ skipping 233 matching lines @@
 
   // For debugging use after free, assigned to 123456 in constructor and 654321
   // in destructor. As long as it's not 123456, this means either use after free
   // or memory corruption.
   int32_t destruction_indicator_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicStreamSequencerBuffer);
 };
 }  // namespace net
 
-#endif  // NET_QUIC_QUIC_STREAM_SEQUENCER_BUFFER_H_
+#endif  // NET_QUIC_CORE_QUIC_STREAM_SEQUENCER_BUFFER_H_