Fix Windows and Mac OS builds

runtime/bin/eventhandler_win.cc

 // 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.
 
 #include "bin/eventhandler.h"
 
 #include <process.h>
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <mswsock.h>
@@ skipping 626 matching lines @@
       handle->EnsureInitialized(this);
 
       Handle::ScopedLock lock(handle);
 
       // If the data available callback has been requested and data are
       // available post it immediately. Otherwise make sure that a pending
       // read is issued unless the socket is already closed for read.
       if ((msg->data & (1 << kInEvent)) != 0) {
         if (handle->Available() > 0) {
           int event_mask = (1 << kInEvent);
-          DartUtils::PostInteger(port, event_mask);
+          DartUtils::PostInt32(port, event_mask);
         } else if (!handle->HasPendingRead() &&
                    !handle->IsClosedRead()) {
           handle->IssueRead();
         }
       }
 
       // If can send callback had been requested and there is no pending
       // send post it immediately.
       if ((msg->data & (1 << kOutEvent)) != 0) {
         if (!handle->HasPendingWrite()) {
@@ skipping 228 matching lines @@
                                    reinterpret_cast<uword>(this));
   if (result != 0) {
     FATAL1("Failed to start event handler thread %d", result);
   }
 
   // Initialize Winsock32
   if (!Socket::Initialize()) {
     FATAL("Failed to initialized Windows sockets");
   }
 }