Remove SPDY/2 code.

net/socket/ssl_client_socket.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/socket/ssl_client_socket.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_util.h"
 #include "crypto/ec_private_key.h"
@@ skipping 14 matching lines @@
     : signed_cert_timestamps_received_(false),
       stapled_ocsp_response_received_(false),
       negotiation_extension_(kExtensionUnknown) {
 }
 
 // static
 NextProto SSLClientSocket::NextProtoFromString(
     const std::string& proto_string) {
   if (proto_string == "http1.1" || proto_string == "http/1.1") {
     return kProtoHTTP11;
-  } else if (proto_string == "spdy/2") {
-    return kProtoDeprecatedSPDY2;
   } else if (proto_string == "spdy/3") {
     return kProtoSPDY3;
   } else if (proto_string == "spdy/3.1") {
     return kProtoSPDY31;
   } else if (proto_string == "h2") {
     return kProtoHTTP2;
   } else if (proto_string == "quic/1+spdy/3") {
     return kProtoQUIC1SPDY3;
   } else {
     return kProtoUnknown;
   }
 }
 
 // static
 const char* SSLClientSocket::NextProtoToString(NextProto next_proto) {
   switch (next_proto) {
     case kProtoHTTP11:
       return "http/1.1";
-    case kProtoDeprecatedSPDY2:
-      return "spdy/2";
     case kProtoSPDY3:
       return "spdy/3";
     case kProtoSPDY31:
       return "spdy/3.1";
     case kProtoHTTP2:
       return "h2";
     case kProtoQUIC1SPDY3:
       return "quic/1+spdy/3";
     case kProtoUnknown:
       break;
@@ skipping 145 matching lines @@
     wire_protos.push_back(proto.size());
     for (const char ch : proto) {
       wire_protos.push_back(static_cast<uint8_t>(ch));
     }
   }
 
   return wire_protos;
 }
 
 }  // namespace net