Deprecate FLAGS_quic_disable_pre_30. Remove QUIC versions [25-29].

net/quic/quic_spdy_stream.cc

 // Copyright 2013 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/quic/quic_spdy_stream.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 29 matching lines @@
   spdy_session_->RegisterStreamPriority(id, priority_);
 }
 
 QuicSpdyStream::~QuicSpdyStream() {
   if (spdy_session_ != nullptr) {
     spdy_session_->UnregisterStreamPriority(id());
   }
 }
 
 void QuicSpdyStream::CloseWriteSide() {
-  if (version() > QUIC_VERSION_28 && !fin_received() && !rst_received() &&
-      sequencer()->ignore_read_data() && !rst_sent()) {
+  if (!fin_received() && !rst_received() && sequencer()->ignore_read_data() &&
+      !rst_sent()) {
     DCHECK(fin_sent());
     // Tell the peer to stop sending further data.
     DVLOG(1) << ENDPOINT << "Send QUIC_STREAM_NO_ERROR on stream " << id();
     Reset(QUIC_STREAM_NO_ERROR);
   }
 
   ReliableQuicStream::CloseWriteSide();
 }
 
 void QuicSpdyStream::StopReading() {
-  if (version() > QUIC_VERSION_28 && !fin_received() && !rst_received() &&
-      write_side_closed() && !rst_sent()) {
+  if (!fin_received() && !rst_received() && write_side_closed() &&
+      !rst_sent()) {
     DCHECK(fin_sent());
     // Tell the peer to stop sending further data.
     DVLOG(1) << ENDPOINT << "Send QUIC_STREAM_NO_ERROR on stream " << id();
     Reset(QUIC_STREAM_NO_ERROR);
   }
   ReliableQuicStream::StopReading();
 }
 
 size_t QuicSpdyStream::WriteHeaders(
     SpdyHeaderBlock header_block,
@@ skipping 251 matching lines @@
     session()->connection()->CloseConnection(
         QUIC_INVALID_HEADERS_STREAM_DATA, "Trailers are malformed",
         ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
     return;
   }
   OnStreamFrame(QuicStreamFrame(id(), fin, final_byte_offset, StringPiece()));
   trailers_decompressed_ = true;
 }
 
 void QuicSpdyStream::OnStreamReset(const QuicRstStreamFrame& frame) {
-  if (frame.error_code != QUIC_STREAM_NO_ERROR ||
-      version() <= QUIC_VERSION_28) {
+  if (frame.error_code != QUIC_STREAM_NO_ERROR) {
     ReliableQuicStream::OnStreamReset(frame);
     return;
   }
   DVLOG(1) << "Received QUIC_STREAM_NO_ERROR, not discarding response";
   set_rst_received(true);
   MaybeIncreaseHighestReceivedOffset(frame.byte_offset);
   set_stream_error(frame.error_code);
   CloseWriteSide();
 }
 
@@ skipping 63 matching lines @@
   if (spdy_session_->headers_stream() != nullptr &&
       spdy_session_->force_hol_blocking()) {
     return spdy_session_->headers_stream()->WritevStreamData(
         id(), iov, offset, fin, ack_notifier_delegate);
   }
   return ReliableQuicStream::WritevDataInner(iov, offset, fin,
                                              ack_notifier_delegate);
 }
 
 }  // namespace net