Surface hpack decoder detailed error for header value too long, and put detailed error to quic connection close error details. only change connection close error detail, not protected.

PiperOrigin-RevId: 323008871
Change-Id: I6f41118464ae686fbfeb009c8ac13d83b8fff3f0
diff --git a/quic/core/http/quic_headers_stream_test.cc b/quic/core/http/quic_headers_stream_test.cc
index d9e1c8e..d2736ff 100644
--- a/quic/core/http/quic_headers_stream_test.cc
+++ b/quic/core/http/quic_headers_stream_test.cc
@@ -87,7 +87,8 @@
  public:
   MOCK_METHOD(void,
               OnError,
-              (http2::Http2DecoderAdapter::SpdyFramerError error),
+              (http2::Http2DecoderAdapter::SpdyFramerError error,
+               std::string detailed_error),
               (override));
   MOCK_METHOD(void,
               OnDataFrameHeader,