Move NextProto enum to a new file net/socket/next_proto.h

net/socket/next_proto.h

+// Copyright (c) 2011 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.
+
+#ifndef NET_SOCKET_NEXT_PROTO_H_
+#define NET_SOCKET_NEXT_PROTO_H_
+#pragma once
+
+namespace net {
+
+// Next Protocol Negotiation (NPN), if successful, results in agreement on an
+// application-level string that specifies the application level protocol to
+// use over the TLS connection. NextProto enumerates the application level
+// protocols that we recognise.
+enum NextProto {
+  kProtoUnknown = 0,
+  kProtoHTTP11 = 1,
+  kProtoSPDY1 = 2,
+  kProtoSPDY2 = 3,
+  kProtoSPDY21 = 4,
+  kProtoSPDY3 = 5,
+};
+
+}  // namespace net
+
+#endif  // NET_SOCKET_NEXT_PROTO_H_