Revert of Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/decoder/decode_http2_structures.h

Index: net/http2/decoder/decode_http2_structures.h
diff --git a/net/http2/decoder/decode_http2_structures.h b/net/http2/decoder/decode_http2_structures.h
deleted file mode 100644
index 7cee46f26a69865344cabdff6bfd495889ac1117..0000000000000000000000000000000000000000
--- a/net/http2/decoder/decode_http2_structures.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// 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_HTTP2_DECODER_DECODE_HTTP2_STRUCTURES_H_
-#define NET_HTTP2_DECODER_DECODE_HTTP2_STRUCTURES_H_
-
-// Provides functions for decoding the fixed size structures in the HTTP/2 spec.
-
-// TODO(jamessynge): Consider whether the value of the SlowDecode methods is
-// worth their complexity; in particular, dropping back to buffering at most
-// 9 bytes (the largest fixed size structure) may actually be more efficient
-// than using the SlowDecode methods, or at least worth the complexity
-// reduction.
-// See http2_structure_decoder.h et al for an experiment in removing all except
-// DoDecode.
-
-#include "net/base/net_export.h"
-#include "net/http2/decoder/decode_buffer.h"
-#include "net/http2/http2_structures.h"
-
-namespace net {
-
-// DoDecode(STRUCTURE* out, DecodeBuffer* b) decodes the structure from start
-// to end, advancing the cursor by STRUCTURE::EncodedSize(). The decoder buffer
-// must be large enough (i.e. b->Remaining() >= STRUCTURE::EncodedSize()).
-
-NET_EXPORT_PRIVATE void DoDecode(Http2FrameHeader* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2PriorityFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2RstStreamFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2SettingFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2PushPromiseFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2PingFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2GoAwayFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2WindowUpdateFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE void DoDecode(Http2AltSvcFields* out, DecodeBuffer* b);
-
-// MaybeDecode(STRUCTURE* out, DecodeBuffer* b) decodes the structure from
-// start to end if the decoder buffer is large enough, advancing the cursor
-// by STRUCTURE::EncodedSize(), then returns true.
-// If the decode buffer isn't large enough, does nothing and returns false.
-// The buffer is large enough if b->Remaining() >= STRUCTURE::EncodedSize().
-
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2FrameHeader* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2PriorityFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2RstStreamFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2SettingFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2PushPromiseFields* out,
-                                    DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2PingFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2GoAwayFields* out, DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2WindowUpdateFields* out,
-                                    DecodeBuffer* b);
-NET_EXPORT_PRIVATE bool MaybeDecode(Http2AltSvcFields* out, DecodeBuffer* b);
-
-// SlowDecode(STRUCTURE* out, DecodeBuffer* b, uint32_t* offset) provides
-// incremental decoding of a structure, supporting cases where the structure
-// is split across multiple input buffers. *offset represents the offset within
-// the encoding of the structure, in the range [0, STRUCTURE::EncodedSize()].
-// Returns true when it is able to completely decode the structure, false
-// before that. Updates *offset to record the progress decoding the structure;
-// if false is returned, then b->Remaining() == 0 when SlowDecode returns.
-
-NET_EXPORT_PRIVATE bool SlowDecode(Http2FrameHeader* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2PriorityFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2RstStreamFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2SettingFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2PushPromiseFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2PingFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2GoAwayFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2WindowUpdateFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-NET_EXPORT_PRIVATE bool SlowDecode(Http2AltSvcFields* out,
-                                   DecodeBuffer* b,
-                                   uint32_t* offset);
-
-}  // namespace net
-
-#endif  // NET_HTTP2_DECODER_DECODE_HTTP2_STRUCTURES_H_