Add FileSystemWatcher class to dart:io.

runtime/bin/socket.cc

 // Copyright (c) 2013, 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.
 
 #include "bin/io_buffer.h"
 #include "bin/socket.h"
 #include "bin/dartutils.h"
 #include "bin/thread.h"
 #include "bin/utils.h"
 
@@ skipping 267 matching lines @@
   intptr_t num =
       DartUtils::GetIntptrValue(Dart_GetNativeArgument(args, 1));
   ASSERT(num == 0 || num == 1 || num == 2);
   intptr_t socket = Socket::GetStdioHandle(num);
   Dart_Handle err = Socket::SetSocketIdNativeField(socket_obj, socket);
   if (Dart_IsError(err)) Dart_PropagateError(err);
   Dart_SetReturnValue(args, Dart_NewBoolean(socket >= 0));
 }
 
 
+void FUNCTION_NAME(Socket_SetSocketId)(Dart_NativeArguments args) {
+  Dart_Handle socket_obj = Dart_GetNativeArgument(args, 0);
+  intptr_t id =
+      DartUtils::GetIntptrValue(Dart_GetNativeArgument(args, 1));
+  Dart_Handle err = Socket::SetSocketIdNativeField(socket_obj, id);
+  if (Dart_IsError(err)) Dart_PropagateError(err);
+}
+
+
 void FUNCTION_NAME(ServerSocket_CreateBindListen)(Dart_NativeArguments args) {
   Dart_Handle socket_obj = Dart_GetNativeArgument(args, 0);
   Dart_Handle host_obj = Dart_GetNativeArgument(args, 1);
   RawAddr addr;
   Dart_Handle result = GetSockAddr(host_obj, &addr);
   Dart_Handle port_obj = Dart_GetNativeArgument(args, 2);
   Dart_Handle backlog_obj = Dart_GetNativeArgument(args, 3);
   Dart_Handle v6_only_obj = Dart_GetNativeArgument(args, 4);
   bool v6_only = DartUtils::GetBooleanValue(v6_only_obj);
   int64_t port = 0;
@@ skipping 262 matching lines @@
   return Dart_SetNativeInstanceField(socket, kSocketIdNativeField, id);
 }
 
 
 Dart_Handle Socket::GetSocketIdNativeField(Dart_Handle socket, intptr_t* id) {
   return Dart_GetNativeInstanceField(socket, kSocketIdNativeField, id);
 }
 
 }  // namespace bin
 }  // namespace dart