Support HTTP/2 drafts 14 and 15 simultaneously.

net/socket/next_proto.h

 // 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.
 
 #ifndef NET_SOCKET_NEXT_PROTO_H_
 #define NET_SOCKET_NEXT_PROTO_H_
 
 #include <vector>
 
 #include "net/base/net_export.h"
@@ skipping 10 matching lines @@
 enum NextProto {
   kProtoUnknown = 0,
   kProtoHTTP11 = 1,
   kProtoMinimumVersion = kProtoHTTP11,
 
   kProtoDeprecatedSPDY2 = 100,
   kProtoSPDYMinimumVersion = kProtoDeprecatedSPDY2,
   kProtoSPDYHistogramOffset = kProtoDeprecatedSPDY2,
   kProtoSPDY3 = 101,
   kProtoSPDY31 = 102,
-  // HTTP/2 draft-14 was 103,
-  kProtoSPDY4 = 104,  // SPDY4 is HTTP/2 draft-15.
-  kProtoSPDYMaximumVersion = kProtoSPDY4,
+  kProtoSPDY4_14 = 103,  // HTTP/2 draft-14
+  kProtoSPDY4MinimumVersion = kProtoSPDY4_14,
+  kProtoSPDY4_15 = 104,  // HTTP/2 draft-15
+  kProtoSPDY4MaximumVersion = kProtoSPDY4_15,
+  kProtoSPDYMaximumVersion = kProtoSPDY4MaximumVersion,
 
   kProtoQUIC1SPDY3 = 200,
 
   kProtoMaximumVersion = kProtoQUIC1SPDY3,
 };
 
 // List of protocols to use for NPN, used for configuring HttpNetworkSessions.
 typedef std::vector<NextProto> NextProtoVector;
 
 // Convenience functions to create NextProtoVector.
 
 NET_EXPORT NextProtoVector NextProtosHttpOnly();
 
 // Default values, which are subject to change over time.  Currently just
 // SPDY 3 and 3.1.
 NET_EXPORT NextProtoVector NextProtosDefaults();
 
 NET_EXPORT NextProtoVector NextProtosWithSpdyAndQuic(bool spdy_enabled,
                                                      bool quic_enabled);
 
 // All of these also enable QUIC.
 NET_EXPORT NextProtoVector NextProtosSpdy31();
 NET_EXPORT NextProtoVector NextProtosSpdy4Http2();
 
 }  // namespace net
 
 #endif  // NET_SOCKET_NEXT_PROTO_H_