Update from https://crrev.com/304121

net/http/http_server_properties.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_HTTP_HTTP_SERVER_PROPERTIES_H_
 #define NET_HTTP_HTTP_SERVER_PROPERTIES_H_
 
 #include <map>
 #include <string>
 #include "base/basictypes.h"
@@ skipping 39 matching lines @@
 // Log a histogram to reflect |location|.
 NET_EXPORT void HistogramBrokenAlternateProtocolLocation(
     BrokenAlternateProtocolLocation location);
 
 enum AlternateProtocol {
   DEPRECATED_NPN_SPDY_2 = 0,
   ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION = DEPRECATED_NPN_SPDY_2,
   NPN_SPDY_MINIMUM_VERSION = DEPRECATED_NPN_SPDY_2,
   NPN_SPDY_3,
   NPN_SPDY_3_1,
-  NPN_SPDY_4,  // SPDY4 is HTTP/2.
-  NPN_SPDY_MAXIMUM_VERSION = NPN_SPDY_4,
+  NPN_SPDY_4_14,  // HTTP/2 draft-14
+  NPN_SPDY_4_15,  // HTTP/2 draft-15
+  NPN_SPDY_MAXIMUM_VERSION = NPN_SPDY_4_15,
   QUIC,
   ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION = QUIC,
   UNINITIALIZED_ALTERNATE_PROTOCOL,
 };
 
 // Simply returns whether |protocol| is between
 // ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION and
 // ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION (inclusive).
 NET_EXPORT bool IsAlternateProtocolValid(AlternateProtocol protocol);
 
@@ skipping 166 matching lines @@
   virtual const NetworkStats* GetServerNetworkStats(
       const HostPortPair& host_port_pair) const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpServerProperties);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_H_