Add a new GetNegotiatedProtocol method to StreamSocket and implement in all subclasses.

net/socket/ssl_server_socket_nss.h

Index: net/socket/ssl_server_socket_nss.h
diff --git a/net/socket/ssl_server_socket_nss.h b/net/socket/ssl_server_socket_nss.h
index 1496362d3d94bb340a8ee318423866c784ddfe57..aefb584c30aa1427d119d13d5e3f3afc1805ba1d 100644
--- a/net/socket/ssl_server_socket_nss.h
+++ b/net/socket/ssl_server_socket_nss.h
@@ -61,6 +61,7 @@ class SSLServerSocketNSS : public SSLServerSocket {
   virtual bool UsingTCPFastOpen() const OVERRIDE;
   virtual int64 NumBytesRead() const OVERRIDE;
   virtual base::TimeDelta GetConnectTimeMicros() const OVERRIDE;
+  virtual NextProto GetNegotiatedProtocol() const OVERRIDE;

[wtc, 2012/03/30 21:19:14]

BUG: I believe SSLServerSocketNSS should simply use the
definition of GetNegotiatedProtocol() in SSLClientSocket.

[wtc, 2012/03/30 21:50:08]

I was confused.  I thought this was the SSLClientSocketNSS
class.

SSLServerSocketNSS doesn't support NPN yet, so its
GetNegotiatedProtocol() method should simply return
kProtoUnknown.

[Ryan Hamilton, 2012/03/30 21:53:17]

But this is a server socket which does not inherit from SSLClientSocket, so it
is not able to use that definition.  It looks like NPN is not supported by this
class, so I changed the definition to return kProtoUnknown and added a comment.

 
  private:
   enum State {