Clean up NPN/ALPN-related SSLClientSocket bits.

net/socket/next_proto.cc

 // Copyright 2014 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/next_proto.h"
 
 namespace net {
 
 NextProtoVector NextProtosDefaults() {
   NextProtoVector next_protos;
@@ skipping 19 matching lines @@
 }
 
 NextProtoVector NextProtosSpdy31() {
   NextProtoVector next_protos;
   next_protos.push_back(kProtoHTTP11);
   next_protos.push_back(kProtoQUIC1SPDY3);
   next_protos.push_back(kProtoSPDY31);
   return next_protos;
 }
 
+bool NextProtoIsSPDY(NextProto next_proto) {
+  return next_proto >= kProtoSPDYMinimumVersion &&
+         next_proto <= kProtoSPDYMaximumVersion;
+}
+
 }  // namespace net