deprecate FLAGS_quic_bugfix_fhol_writev_fin_only_v2.

net/quic/core/quic_headers_stream_test.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/core/quic_headers_stream.h"
 
 #include <string>
 #include <tuple>
 #include <utility>
 
@@ skipping 977 matching lines @@
         // HTTP/2 DATA frame headers.
         EXPECT_EQ(ack_listener->total_acked_bytes(), data_len);
       }
       saved_data_.clear();
       saved_payloads_.clear();
     }
   }
 }
 
 TEST_P(QuicHeadersStreamTest, WritevStreamDataFinOnly) {
-  FLAGS_quic_bugfix_fhol_writev_fin_only_v2 = true;
   struct iovec iov;
   string data;
 
   EXPECT_CALL(session_,
               WritevData(headers_stream_, kHeadersStreamId, _, _, false, _))
       .WillOnce(WithArgs<2, 5>(
           Invoke(this, &QuicHeadersStreamTest::SaveIovAndNotifyAckListener)));
 
   QuicConsumedData consumed_data = headers_stream_->WritevStreamData(
       kClientDataStreamId1, MakeIOVector(data, &iov), 0, true, nullptr);
 
   EXPECT_EQ(consumed_data.bytes_consumed, 0u);
   EXPECT_EQ(consumed_data.fin_consumed, true);
 }
 
 TEST_P(QuicHeadersStreamTest, WritevStreamDataSendBlocked) {
-  FLAGS_quic_bugfix_fhol_writev_fin_only_v2 = true;
   QuicStreamId id = kClientDataStreamId1;
   QuicStreamOffset offset = 0;
   struct iovec iov;
 
   // This test will issue a write that will require fragmenting into
   // multiple HTTP/2 DATA frames.  It will ensure that only 1 frame
   // will go out in the case that the underlying session becomes write
   // blocked.  Buffering is required to preserve framing, but the
   // amount of buffering is limited to one HTTP/2 data frame.
   const int kMinDataFrames = 4;
@@ skipping 25 matching lines @@
   consumed_data = headers_stream_->WritevStreamData(
       id, MakeIOVector(data, &iov), offset, fin, nullptr);
 
   EXPECT_EQ(consumed_data.bytes_consumed, 0u);
   EXPECT_EQ(consumed_data.fin_consumed, false);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net