SPDY - add support for spdy/2.1 to support flow control.

net/socket/ssl_client_socket.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_SSL_CLIENT_SOCKET_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_H_
 #pragma once
 
 #include <string>
 
@@ skipping 65 matching lines @@
 
   // 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,
   };
 
   // Gets the SSL connection information of the socket.
   //
   // TODO(sergeyu): Move this method to the SSLSocket interface and
   // implemented in SSLServerSocket too.
   virtual void GetSSLInfo(SSLInfo* ssl_info) = 0;
 
   // Gets the SSL CertificateRequest info of the socket after Connect failed
   // with ERR_SSL_CLIENT_AUTH_CERT_NEEDED.
@@ skipping 23 matching lines @@
   static bool IgnoreCertError(int error, int load_flags);
 
   virtual bool was_npn_negotiated() const;
 
   virtual bool set_was_npn_negotiated(bool negotiated);
 
   virtual bool was_spdy_negotiated() const;
 
   virtual bool set_was_spdy_negotiated(bool negotiated);
 
+  virtual SSLClientSocket::NextProto next_protocol_negotiated() const;
+
+  virtual void set_next_protocol_negotiated(
+      SSLClientSocket::NextProto next_protocol);
+
   // Returns true if an origin bound certificate was sent on this connection.
   // This may be useful for protocols, like SPDY, which allow the same
   // connection to be shared between multiple origins, each of which need
   // an origin bound certificate.
   virtual bool was_origin_bound_cert_sent() const;
 
   virtual bool set_was_origin_bound_cert_sent(bool sent);
 
  private:
   // True if NPN was responded to, independent of selecting SPDY or HTTP.
   bool was_npn_negotiated_;
   // True if NPN successfully negotiated SPDY.
   bool was_spdy_negotiated_;
+  // Protocol that we negotiated with the server.
+  SSLClientSocket::NextProto next_protocol_;
   // True if an origin bound certificate was sent.
   bool was_origin_bound_cert_sent_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_H_