Deprecate FLAGS_quic_disallow_multi_packet_chlo.

net/quic/quic_packet_creator.cc

 // Copyright (c) 2012 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_packet_creator.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 116 matching lines @@
                                     size_t iov_offset,
                                     QuicStreamOffset offset,
                                     bool fin,
                                     bool needs_full_padding,
                                     QuicFrame* frame) {
   if (!HasRoomForStreamFrame(id, offset)) {
     return false;
   }
   CreateStreamFrame(id, iov, iov_offset, offset, fin, frame);
   // Explicitly disallow multi-packet CHLOs.
-  if (FLAGS_quic_disallow_multi_packet_chlo && id == kCryptoStreamId &&
+  if (id == kCryptoStreamId &&
       frame->stream_frame->data_length >= sizeof(kCHLO) &&
       strncmp(frame->stream_frame->data_buffer,
               reinterpret_cast<const char*>(&kCHLO), sizeof(kCHLO)) == 0) {
     DCHECK_EQ(static_cast<size_t>(0), iov_offset);
     if (frame->stream_frame->data_length < iov.iov->iov_len) {
       const string error_details = "Client hello won't fit in a single packet.";
       QUIC_BUG << error_details << " Constructed stream frame length: "
                << frame->stream_frame->data_length
                << " CHLO length: " << iov.iov->iov_len;
       delegate_->OnUnrecoverableError(QUIC_CRYPTO_CHLO_TOO_LARGE, error_details,
@@ skipping 539 matching lines @@
   if (bit_mask_ == 0) {
     bit_bucket_ = random_->RandUint64();
     bit_mask_ = 1;
   }
   bool result = ((bit_bucket_ & bit_mask_) != 0);
   bit_mask_ <<= 1;
   return result;
 }
 
 }  // namespace net