Remove the non-RFC 7539 variants of ChaCha20Poly1305 crypters in QUIC

net/quic/quic_chromium_client_session.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_chromium_client_session.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/location.h"
@@ skipping 512 matching lines @@
   // Report the TLS cipher suite that most closely resembles the crypto
   // parameters of the QUIC connection.
   QuicTag aead = crypto_stream_->crypto_negotiated_params().aead;
   uint16_t cipher_suite;
   int security_bits;
   switch (aead) {
     case kAESG:
       cipher_suite = 0xc02f;  // TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
       security_bits = 128;
       break;
-    case kCC12:
-      cipher_suite = 0xcc13;  // TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
-      security_bits = 256;
-      break;
     case kCC20:
       cipher_suite = 0xcc13;  // TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
       security_bits = 256;
       break;
     default:
       NOTREACHED();
       return false;
   }
   int ssl_connection_status = 0;
   ssl_connection_status |= cipher_suite;
@@ skipping 635 matching lines @@
 }
 
 void QuicChromiumClientSession::DeletePromised(
     QuicClientPromisedInfo* promised) {
   if (IsOpenStream(promised->id()))
     streams_pushed_and_claimed_count_++;
   QuicClientSessionBase::DeletePromised(promised);
 }
 
 }  // namespace net