QUIC - bugfix for forced head of line blocking experiment. Guarded by ENABLED --FLAGS_quic_bugfix_f…

net/quic/core/quic_headers_stream.h

Index: net/quic/core/quic_headers_stream.h
diff --git a/net/quic/core/quic_headers_stream.h b/net/quic/core/quic_headers_stream.h
index b10ec37d603c09241244171f3c7fe3ded9486870..af79e3d1b43ab1ecf5f89fb9bff8511ad6e89cae 100644
--- a/net/quic/core/quic_headers_stream.h
+++ b/net/quic/core/quic_headers_stream.h
@@ -132,10 +132,15 @@ class NET_EXPORT_PRIVATE QuicHeadersStream : public QuicStream {
   void OnCompressedFrameSize(size_t frame_len);
 
   // For force HOL blocking, where stream frames from all streams are
-  // plumbed through headers stream as HTTP/2 data frames.  Return false
-  // if force_hol_blocking_ is false;
+  // plumbed through headers stream as HTTP/2 data frames.
+  // The following two return false if force_hol_blocking_ is false.
   bool OnDataFrameHeader(QuicStreamId stream_id, size_t length, bool fin);
   bool OnStreamFrameData(QuicStreamId stream_id, const char* data, size_t len);
+  // Helper for |WritevStreamData()|.
+  void WriteDataFrame(QuicStreamId stream_id,
+                      base::StringPiece data,
+                      bool fin,
+                      QuicAckListenerInterface* ack_notifier_delegate);
 
   // Returns true if the session is still connected.
   bool IsConnected();