Revert of Unify enum NextProto and enum AlternateProtocol.

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/feature_list.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 11 matching lines @@
 const base::Feature kPostQuantumExperiment{"SSLPostQuantumExperiment",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
 #endif
 }  // namespace
 
 SSLClientSocket::SSLClientSocket()
     : signed_cert_timestamps_received_(false),
       stapled_ocsp_response_received_(false) {}
 
 // static
+NextProto SSLClientSocket::NextProtoFromString(base::StringPiece proto_string) {
+  if (proto_string == "http1.1" || proto_string == "http/1.1") {
+    return kProtoHTTP11;
+  } else if (proto_string == "h2") {
+    return kProtoHTTP2;
+  } else if (proto_string == "quic/1+spdy/3") {
+    return kProtoQUIC;
+  } else {
+    return kProtoUnknown;
+  }
+}
+
+// static
+const char* SSLClientSocket::NextProtoToString(NextProto next_proto) {
+  switch (next_proto) {
+    case kProtoHTTP11:
+      return "http/1.1";
+    case kProtoHTTP2:
+      return "h2";
+    case kProtoQUIC:
+      return "quic/1+spdy/3";
+    case kProtoUnknown:
+      break;
+  }
+  return "unknown";
+}
+
+// static
 void SSLClientSocket::SetSSLKeyLogFile(
     const base::FilePath& path,
     const scoped_refptr<base::SequencedTaskRunner>& task_runner) {
 #if !defined(OS_NACL)
   SSLClientSocketImpl::SetSSLKeyLogFile(path, task_runner);
 #else
   NOTIMPLEMENTED();
 #endif
 }
 
@@ skipping 30 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