Secure server sockets for dart:io. Add TlsServerSocket class, providing SSL server sockets.

runtime/bin/io_natives.cc

Index: runtime/bin/io_natives.cc
diff --git a/runtime/bin/io_natives.cc b/runtime/bin/io_natives.cc
index 1cd02367b1e3eb10e88a0dbba3a6c2ea342fc682..403cc927608374ad563ac3330055aa7b3f7eff4c 100644
--- a/runtime/bin/io_natives.cc
+++ b/runtime/bin/io_natives.cc
@@ -40,13 +40,13 @@
   V(Socket_GetError, 1)                                                        \
   V(Socket_GetStdioHandle, 2)                                                  \
   V(Socket_NewServicePort, 0)                                                  \
-  V(TlsSocket_Connect, 3)                                                      \
+  V(TlsSocket_Connect, 5)                                                      \
   V(TlsSocket_Destroy, 1)                                                      \
   V(TlsSocket_Handshake, 1)                                                    \
   V(TlsSocket_Init, 1)                                                         \
   V(TlsSocket_ProcessBuffer, 2)                                                \
   V(TlsSocket_RegisterHandshakeCompleteCallback, 2)                            \
-  V(TlsSocket_SetCertificateDatabase, 1)
+  V(TlsSocket_SetCertificateDatabase, 2)
 
 IO_NATIVE_LIST(DECLARE_FUNCTION);