Split net/spdy into core and chromium subdirectories.

net/spdy/hpack/hpack_decoder3.h

-// Copyright 2017 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 NET_SPDY_HPACK_HPACK_DECODER3_H_
-#define NET_SPDY_HPACK_HPACK_DECODER3_H_
-
-// HpackDecoder3 implements HpackDecoderInterface, using Http2HpackDecoder to
-// decode HPACK blocks into HTTP/2 header lists as outlined in
-// http://tools.ietf.org/html/rfc7541.
-
-#include <stddef.h>
-
-#include <memory>
-
-#include "base/macros.h"
-#include "net/base/net_export.h"
-#include "net/http2/hpack/decoder/hpack_decoder_listener.h"
-#include "net/http2/hpack/decoder/http2_hpack_decoder.h"
-#include "net/http2/hpack/hpack_string.h"
-#include "net/http2/hpack/http2_hpack_constants.h"
-#include "net/spdy/hpack/hpack_decoder_interface.h"
-#include "net/spdy/hpack/hpack_header_table.h"
-#include "net/spdy/platform/api/spdy_string_piece.h"
-#include "net/spdy/spdy_header_block.h"
-#include "net/spdy/spdy_headers_handler_interface.h"
-
-namespace net {
-namespace test {
-class HpackDecoder3Peer;
-}  // namespace test
-
-class NET_EXPORT_PRIVATE HpackDecoder3 : public HpackDecoderInterface {
- public:
-  friend test::HpackDecoder3Peer;
-  HpackDecoder3();
-  ~HpackDecoder3() override;
-
-  // Override the HpackDecoderInterface methods:
-
-  void ApplyHeaderTableSizeSetting(size_t size_setting) override;
-  void HandleControlFrameHeadersStart(
-      SpdyHeadersHandlerInterface* handler) override;
-  bool HandleControlFrameHeadersData(const char* headers_data,
-                                     size_t headers_data_length) override;
-  bool HandleControlFrameHeadersComplete(size_t* compressed_len) override;
-  const SpdyHeaderBlock& decoded_block() const override;
-  void SetHeaderTableDebugVisitor(
-      std::unique_ptr<HpackHeaderTable::DebugVisitorInterface> visitor)
-      override;
-  void set_max_decode_buffer_size_bytes(
-      size_t max_decode_buffer_size_bytes) override;
-  size_t EstimateMemoryUsage() const override;
-
- private:
-  class NET_EXPORT_PRIVATE ListenerAdapter
-      : public HpackDecoderListener,
-        public HpackDecoderTablesDebugListener {
-   public:
-    ListenerAdapter();
-    ~ListenerAdapter() override;
-
-    // If a SpdyHeadersHandlerInterface is provided, the decoder will emit
-    // headers to it rather than accumulating them in a SpdyHeaderBlock.
-    // Does not take ownership of the handler, but does use the pointer until
-    // the current HPACK block is completely decoded.
-    void set_handler(SpdyHeadersHandlerInterface* handler);
-    const SpdyHeaderBlock& decoded_block() const { return decoded_block_; }
-
-    void SetHeaderTableDebugVisitor(
-        std::unique_ptr<HpackHeaderTable::DebugVisitorInterface> visitor);
-
-    // Override the HpackDecoderListener methods:
-    void OnHeaderListStart() override;
-    void OnHeader(HpackEntryType entry_type,
-                  const HpackString& name,
-                  const HpackString& value) override;
-    void OnHeaderListEnd() override;
-    void OnHeaderErrorDetected(SpdyStringPiece error_message) override;
-
-    // Override the HpackDecoderTablesDebugListener methods:
-    int64_t OnEntryInserted(const HpackStringPair& entry,
-                            size_t insert_count) override;
-    void OnUseEntry(const HpackStringPair& entry,
-                    size_t insert_count,
-                    int64_t insert_time) override;
-
-    void AddToTotalHpackBytes(size_t delta) { total_hpack_bytes_ += delta; }
-    size_t total_hpack_bytes() const { return total_hpack_bytes_; }
-
-   private:
-    // If the caller doesn't provide a handler, the header list is stored in
-    // this SpdyHeaderBlock.
-    SpdyHeaderBlock decoded_block_;
-
-    // If non-NULL, handles decoded headers. Not owned.
-    SpdyHeadersHandlerInterface* handler_;
-
-    // Total bytes that have been received as input (i.e. HPACK encoded)
-    // in the current HPACK block.
-    size_t total_hpack_bytes_;
-
-    // Total bytes of the name and value strings in the current HPACK block.
-    size_t total_uncompressed_bytes_;
-
-    // visitor_ is used by a QUIC experiment regarding HPACK; remove
-    // when the experiment is done.
-    std::unique_ptr<HpackHeaderTable::DebugVisitorInterface> visitor_;
-  };
-
-  // Converts calls to HpackDecoderListener into calls to
-  // SpdyHeadersHandlerInterface.
-  ListenerAdapter listener_adapter_;
-
-  // The actual decoder.
-  Http2HpackDecoder hpack_decoder_;
-
-  // How much encoded data this decoder is willing to buffer.
-  size_t max_decode_buffer_size_bytes_;
-
-  // Flag to keep track of having seen the header block start. Needed at the
-  // moment because HandleControlFrameHeadersStart won't be called if a handler
-  // is not being provided by the caller.
-  bool header_block_started_;
-
-  DISALLOW_COPY_AND_ASSIGN(HpackDecoder3);
-};
-
-}  // namespace net
-
-#endif  // NET_SPDY_HPACK_HPACK_DECODER3_H_