Beginnings of a debugger wire protocol

runtime/bin/dbg_connection_linux.h

Index: runtime/bin/dbg_connection_linux.h
===================================================================
--- runtime/bin/dbg_connection_linux.h	(revision 0)
+++ runtime/bin/dbg_connection_linux.h	(revision 0)
@@ -0,0 +1,18 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#ifndef BIN_DBG_CONNECTION_LINUX_H_
+#define BIN_DBG_CONNECTION_LINUX_H_
+
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <sys/socket.h>
+
+
+class DebuggerConnectionImpl {
+ public:
+  static void StartHandler(int port_number);
+};
+
+#endif  // BIN_DBG_CONNECTION_LINUX_H_