Change SpdySession::GetSSLInfo to get the SSLInfo from the underlying socket

net/socket/buffered_write_stream_socket.cc

Index: net/socket/buffered_write_stream_socket.cc
diff --git a/net/socket/buffered_write_stream_socket.cc b/net/socket/buffered_write_stream_socket.cc
index ed7ce2e64ecd3a7181b079181c5d0e9bf11c67c4..31199858e51331e0ff5d2646514d12aa84fd1948 100644
--- a/net/socket/buffered_write_stream_socket.cc
+++ b/net/socket/buffered_write_stream_socket.cc
@@ -119,10 +119,18 @@ base::TimeDelta BufferedWriteStreamSocket::GetConnectTimeMicros() const {
   return wrapped_socket_->GetConnectTimeMicros();
 }
 
+bool BufferedWriteStreamSocket::WasNpnNegotiated() const {
+  return wrapped_socket_->WasNpnNegotiated();
+}
+
 NextProto BufferedWriteStreamSocket::GetNegotiatedProtocol() const {
   return wrapped_socket_->GetNegotiatedProtocol();
 }
 
+bool BufferedWriteStreamSocket::GetSSLInfo(SSLInfo* ssl_info) {
+  return wrapped_socket_->GetSSLInfo(ssl_info);
+}
+
 void BufferedWriteStreamSocket::DoDelayedWrite() {
   int result = wrapped_socket_->Write(
       io_buffer_, io_buffer_->RemainingCapacity(),