relnote: Moving many QUIC DFATALS over to QUIC_BUG

net/quic/stream_sequencer_buffer.cc

 // 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.
 
 #include "net/quic/stream_sequencer_buffer.h"
 
 #include "base/logging.h"
+#include "net/quic/quic_bug_tracker.h"
 
 using std::min;
 
 namespace net {
 
 StreamSequencerBuffer::Gap::Gap(QuicStreamOffset begin_offset,
                                 QuicStreamOffset end_offset)
     : begin_offset(begin_offset), end_offset(end_offset) {}
 
 StreamSequencerBuffer::FrameInfo::FrameInfo()
@@ skipping 39 matching lines @@
 
 QuicErrorCode StreamSequencerBuffer::OnStreamData(
     QuicStreamOffset starting_offset,
     base::StringPiece data,
     QuicTime timestamp,
     size_t* const bytes_buffered) {
   *bytes_buffered = 0;
   QuicStreamOffset offset = starting_offset;
   size_t size = data.size();
   if (size == 0) {
-    LOG(DFATAL) << "Attempted to write 0 bytes of data.";
+    QUIC_BUG << "Attempted to write 0 bytes of data.";
     return QUIC_INVALID_STREAM_FRAME;
   }
 
   // Find the first gap not ending before |offset|. This gap maybe the gap to
   // fill if the arriving frame doesn't overlaps with previous ones.
   std::list<Gap>::iterator current_gap = gaps_.begin();
   while (current_gap != gaps_.end() && current_gap->end_offset <= offset) {
     ++current_gap;
   }
 
@@ skipping 365 matching lines @@
           offset, FrameInfo(erased.first + erased.second.length - offset,
                             erased.second.timestamp));
       DVLOG(1) << "Inserted FrameInfo with offset: " << updated.first
                << " and length: " << updated.second.length;
       frame_arrival_time_map_.insert(updated);
     }
   }
 }
 
 }  //  namespace net