Plumbing for TCP FastOpen for SSL sockets.

net/socket/stream_socket.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_STREAM_SOCKET_H_
 #define NET_SOCKET_STREAM_SOCKET_H_
 
 #include "net/base/net_log.h"
 #include "net/socket/next_proto.h"
 #include "net/socket/socket.h"
@@ skipping 57 matching lines @@
   // reasons.  This call is generally forwarded to a basic TCPClientSocket*,
   // where a UseHistory can be updated.
   virtual void SetSubresourceSpeculation() = 0;
   virtual void SetOmniboxSpeculation() = 0;
 
   // Returns true if the socket ever had any reads or writes.  StreamSockets
   // layered on top of transport sockets should return if their own Read() or
   // Write() methods had been called, not the underlying transport's.
   virtual bool WasEverUsed() const = 0;
 
+  // TODO(jri): Clean up -- remove this method.
   // Returns true if the underlying transport socket is using TCP FastOpen.
   // TCP FastOpen is an experiment with sending data in the TCP SYN packet.
   virtual bool UsingTCPFastOpen() const = 0;
 
+  // TODO(jri): Clean up -- rename to a more general EnableAutoConnectOnWrite.
+  // Enables use of TCP FastOpen for the underlying transport socket.
+  virtual void EnableTCPFastOpenIfSupported() {}
+
   // Returns true if NPN was negotiated during the connection of this socket.
   virtual bool WasNpnNegotiated() const = 0;
 
   // Returns the protocol negotiated via NPN for this socket, or
   // kProtoUnknown will be returned if NPN is not applicable.
   virtual NextProto GetNegotiatedProtocol() const = 0;
 
   // Gets the SSL connection information of the socket.  Returns false if
   // SSL was not used by this socket.
   virtual bool GetSSLInfo(SSLInfo* ssl_info) = 0;
@@ skipping 37 matching lines @@
     // identify the motivation.
     bool omnibox_speculation_;
     bool subresource_speculation_;
     DISALLOW_COPY_AND_ASSIGN(UseHistory);
   };
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_STREAM_SOCKET_H_