1 files changed, 57 insertions, 0 deletions
diff --git a/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_progressive_encoder.h b/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_progressive_encoder.h
new file mode 100644
index 00000000000..8e204e23b38
--- /dev/null
+++ b/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_progressive_encoder.h
@@ -0,0 +1,57 @@
+// Copyright (c) 2018 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 QUICHE_QUIC_CORE_QPACK_QPACK_PROGRESSIVE_ENCODER_H_
+#define QUICHE_QUIC_CORE_QPACK_QPACK_PROGRESSIVE_ENCODER_H_
+
+#include <cstddef>
+
+#include "net/third_party/quiche/src/quic/core/qpack/qpack_encoder_stream_sender.h"
+#include "net/third_party/quiche/src/quic/core/qpack/qpack_instruction_encoder.h"
+#include "net/third_party/quiche/src/quic/core/quic_types.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+#include "net/third_party/quiche/src/spdy/core/hpack/hpack_encoder.h"
+#include "net/third_party/quiche/src/spdy/core/spdy_header_block.h"
+
+namespace quic {
+
+class QpackHeaderTable;
+
+// An implementation of ProgressiveEncoder interface that encodes a single
+// header block.
+class QUIC_EXPORT_PRIVATE QpackProgressiveEncoder
+    : public spdy::HpackEncoder::ProgressiveEncoder {
+ public:
+  QpackProgressiveEncoder() = delete;
+  QpackProgressiveEncoder(QuicStreamId stream_id,
+                          QpackHeaderTable* header_table,
+                          QpackEncoderStreamSender* encoder_stream_sender,
+                          const spdy::SpdyHeaderBlock* header_list);
+  QpackProgressiveEncoder(const QpackProgressiveEncoder&) = delete;
+  QpackProgressiveEncoder& operator=(const QpackProgressiveEncoder&) = delete;
+  ~QpackProgressiveEncoder() override = default;
+
+  // Returns true iff more remains to encode.
+  bool HasNext() const override;
+
+  // Encodes up to |max_encoded_bytes| octets, appending to |output|.
+  void Next(size_t max_encoded_bytes, std::string* output) override;
+
+ private:
+  const QuicStreamId stream_id_;
+  QpackInstructionEncoder instruction_encoder_;
+  const QpackHeaderTable* const header_table_;
+  QpackEncoderStreamSender* const encoder_stream_sender_;
+  const spdy::SpdyHeaderBlock* const header_list_;
+
+  // Header field currently being encoded.
+  spdy::SpdyHeaderBlock::const_iterator header_list_iterator_;
+
+  // False until prefix is fully encoded.
+  bool prefix_encoded_;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_QPACK_QPACK_PROGRESSIVE_ENCODER_H_