relnote: Moving many QUIC DFATALS over to QUIC_BUG

net/quic/stream_sequencer_buffer.cc

Index: net/quic/stream_sequencer_buffer.cc
diff --git a/net/quic/stream_sequencer_buffer.cc b/net/quic/stream_sequencer_buffer.cc
index a54f13cf17b3e852ad17295a3b31b8e1722580e5..5b98452d03cb8c5425220674b41cd038c2a6a0c7 100644
--- a/net/quic/stream_sequencer_buffer.cc
+++ b/net/quic/stream_sequencer_buffer.cc
@@ -5,6 +5,7 @@
 #include "net/quic/stream_sequencer_buffer.h"
 
 #include "base/logging.h"
+#include "net/quic/quic_bug_tracker.h"
 
 using std::min;
 
@@ -64,7 +65,7 @@ QuicErrorCode StreamSequencerBuffer::OnStreamData(
   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;
   }