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

net/http2/decoder/payload_decoders/goaway_payload_decoder.cc

Index: net/http2/decoder/payload_decoders/goaway_payload_decoder.cc
diff --git a/net/http2/decoder/payload_decoders/goaway_payload_decoder.cc b/net/http2/decoder/payload_decoders/goaway_payload_decoder.cc
deleted file mode 100644
index f5b597f0e5a847316d97fa0763a19b7c2b6f5c5a..0000000000000000000000000000000000000000
--- a/net/http2/decoder/payload_decoders/goaway_payload_decoder.cc
+++ /dev/null
@@ -1,118 +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.
-
-#include "net/http2/decoder/payload_decoders/goaway_payload_decoder.h"
-
-#include <stddef.h>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "net/http2/decoder/decode_buffer.h"
-#include "net/http2/decoder/http2_frame_decoder_listener.h"
-#include "net/http2/http2_constants.h"
-#include "net/http2/http2_structures.h"
-#include "net/http2/tools/http2_bug_tracker.h"
-
-namespace net {
-
-std::ostream& operator<<(std::ostream& out,
-                         GoAwayPayloadDecoder::PayloadState v) {
-  switch (v) {
-    case GoAwayPayloadDecoder::PayloadState::kStartDecodingFixedFields:
-      return out << "kStartDecodingFixedFields";
-    case GoAwayPayloadDecoder::PayloadState::kHandleFixedFieldsStatus:
-      return out << "kHandleFixedFieldsStatus";
-    case GoAwayPayloadDecoder::PayloadState::kReadOpaqueData:
-      return out << "kReadOpaqueData";
-    case GoAwayPayloadDecoder::PayloadState::kResumeDecodingFixedFields:
-      return out << "kResumeDecodingFixedFields";
-  }
-
-  NOTREACHED();
-  return out;
-}
-
-DecodeStatus GoAwayPayloadDecoder::StartDecodingPayload(
-    FrameDecoderState* state,
-    DecodeBuffer* db) {
-  DVLOG(2) << "GoAwayPayloadDecoder::StartDecodingPayload: "
-           << state->frame_header();
-  DCHECK_EQ(Http2FrameType::GOAWAY, state->frame_header().type);
-  DCHECK_LE(db->Remaining(), state->frame_header().payload_length);
-  DCHECK_EQ(0, state->frame_header().flags);
-
-  state->InitializeRemainders();
-  payload_state_ = PayloadState::kStartDecodingFixedFields;
-  return ResumeDecodingPayload(state, db);
-}
-
-DecodeStatus GoAwayPayloadDecoder::ResumeDecodingPayload(
-    FrameDecoderState* state,
-    DecodeBuffer* db) {
-  DVLOG(2) << "GoAwayPayloadDecoder::ResumeDecodingPayload: remaining_payload="
-           << state->remaining_payload()
-           << ", db->Remaining=" << db->Remaining();
-
-  const Http2FrameHeader& frame_header = state->frame_header();
-  DCHECK_EQ(Http2FrameType::GOAWAY, frame_header.type);
-  DCHECK_LE(db->Remaining(), frame_header.payload_length);
-  DCHECK_NE(PayloadState::kHandleFixedFieldsStatus, payload_state_);
-
-  // |status| has to be initialized to some value to avoid compiler error in
-  // case PayloadState::kHandleFixedFieldsStatus below, but value does not
-  // matter, see DCHECK_NE above.
-  DecodeStatus status = DecodeStatus::kDecodeError;
-  size_t avail;
-  while (true) {
-    DVLOG(2) << "GoAwayPayloadDecoder::ResumeDecodingPayload payload_state_="
-             << payload_state_;
-    switch (payload_state_) {
-      case PayloadState::kStartDecodingFixedFields:
-        status = state->StartDecodingStructureInPayload(&goaway_fields_, db);
-      // FALLTHROUGH_INTENDED
-
-      case PayloadState::kHandleFixedFieldsStatus:
-        if (status == DecodeStatus::kDecodeDone) {
-          state->listener()->OnGoAwayStart(frame_header, goaway_fields_);
-        } else {
-          // Not done decoding the structure. Either we've got more payload
-          // to decode, or we've run out because the payload is too short,
-          // in which case OnFrameSizeError will have already been called.
-          DCHECK((status == DecodeStatus::kDecodeInProgress &&
-                  state->remaining_payload() > 0) ||
-                 (status == DecodeStatus::kDecodeError &&
-                  state->remaining_payload() == 0))
-              << "\n status=" << status
-              << "; remaining_payload=" << state->remaining_payload();
-          payload_state_ = PayloadState::kResumeDecodingFixedFields;
-          return status;
-        }
-      // FALLTHROUGH_INTENDED
-
-      case PayloadState::kReadOpaqueData:
-        // The opaque data is all the remains to be decoded, so anything left
-        // in the decode buffer is opaque data.
-        avail = db->Remaining();
-        if (avail > 0) {
-          state->listener()->OnGoAwayOpaqueData(db->cursor(), avail);
-          db->AdvanceCursor(avail);
-          state->ConsumePayload(avail);
-        }
-        if (state->remaining_payload() > 0) {
-          payload_state_ = PayloadState::kReadOpaqueData;
-          return DecodeStatus::kDecodeInProgress;
-        }
-        state->listener()->OnGoAwayEnd();
-        return DecodeStatus::kDecodeDone;
-
-      case PayloadState::kResumeDecodingFixedFields:
-        status = state->ResumeDecodingStructureInPayload(&goaway_fields_, db);
-        payload_state_ = PayloadState::kHandleFixedFieldsStatus;
-        continue;
-    }
-    HTTP2_BUG << "PayloadState: " << payload_state_;
-  }
-}
-
-}  // namespace net