Split net/spdy into core and chromium subdirectories.

net/spdy/hpack/hpack_decoder_interface.h

-// Copyright 2016 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_DECODER_INTERFACE_H_
-#define NET_SPDY_HPACK_HPACK_DECODER_INTERFACE_H_
-
-// HpackDecoderInterface is the base class for HPACK block decoders.
-// HPACK is defined in http://tools.ietf.org/html/rfc7541
-
-#include <stddef.h>
-
-#include <memory>
-
-#include "net/base/net_export.h"
-#include "net/spdy/hpack/hpack_header_table.h"
-#include "net/spdy/spdy_header_block.h"
-#include "net/spdy/spdy_headers_handler_interface.h"
-
-namespace net {
-
-class NET_EXPORT_PRIVATE HpackDecoderInterface {
- public:
-  virtual ~HpackDecoderInterface() {}
-
-  // Called upon acknowledgement of SETTINGS_HEADER_TABLE_SIZE.
-  virtual void ApplyHeaderTableSizeSetting(size_t size_setting) = 0;
-
-  // 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.
-  virtual void HandleControlFrameHeadersStart(
-      SpdyHeadersHandlerInterface* handler) = 0;
-
-  // Called as HPACK block fragments arrive. Returns false if an error occurred
-  // while decoding the block. Does not take ownership of headers_data.
-  virtual bool HandleControlFrameHeadersData(const char* headers_data,
-                                             size_t headers_data_length) = 0;
-
-  // Called after a HPACK block has been completely delivered via
-  // HandleControlFrameHeadersData(). Returns false if an error occurred.
-  // |compressed_len| if non-null will be set to the size of the encoded
-  // buffered block that was accumulated in HandleControlFrameHeadersData(),
-  // to support subsequent calculation of compression percentage.
-  // Discards the handler supplied at the start of decoding the block.
-  // TODO(jamessynge): Determine if compressed_len is needed; it is used to
-  // produce UUMA stat Net.SpdyHpackDecompressionPercentage, but only for
-  // deprecated SPDY3.
-  virtual bool HandleControlFrameHeadersComplete(size_t* compressed_len) = 0;
-
-  // Accessor for the most recently decoded headers block. Valid until the next
-  // call to HandleControlFrameHeadersData().
-  // TODO(birenroy): Remove this method when all users of HpackDecoder specify
-  // a SpdyHeadersHandlerInterface.
-  virtual const SpdyHeaderBlock& decoded_block() const = 0;
-
-  virtual void SetHeaderTableDebugVisitor(
-      std::unique_ptr<HpackHeaderTable::DebugVisitorInterface> visitor) = 0;
-
-  // Set how much encoded data this decoder is willing to buffer.
-  // TODO(jamessynge): Resolve definition of this value, as it is currently
-  // too tied to a single implementation. We probably want to limit one or more
-  // of these: individual name or value strings, header entries, the entire
-  // header list, or the HPACK block; we probably shouldn't care about the size
-  // of individual transport buffers.
-  virtual void set_max_decode_buffer_size_bytes(
-      size_t max_decode_buffer_size_bytes) = 0;
-
-  // Returns the estimate of dynamically allocated memory in bytes.
-  virtual size_t EstimateMemoryUsage() const = 0;
-};
-
-}  // namespace net
-
-#endif  // NET_SPDY_HPACK_HPACK_DECODER_INTERFACE_H_