Implement windows support for having multiple Dart_Port's registered on one OS socket

dart/runtime/bin/eventhandler_linux.h

 // 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_EVENTHANDLER_LINUX_H_
 #define BIN_EVENTHANDLER_LINUX_H_
 
 #if !defined(BIN_EVENTHANDLER_H_)
 #error Do not include eventhandler_linux.h directly; use eventhandler.h instead.
 #endif
@@ skipping 22 matching lines @@
     VOID_TEMP_FAILURE_RETRY(close(fd_));
     fd_ = -1;
   }
 };
 
 
 class DescriptorInfoSingle
     : public DescriptorInfoSingleMixin<DescriptorInfo> {
  public:
   explicit DescriptorInfoSingle(intptr_t fd)
-      : DescriptorInfoSingleMixin(fd) {}
+      : DescriptorInfoSingleMixin(fd, false) {}
   virtual ~DescriptorInfoSingle() {}
 };
 
 
 class DescriptorInfoMultiple
     : public DescriptorInfoMultipleMixin<DescriptorInfo> {
  public:
   explicit DescriptorInfoMultiple(intptr_t fd)
-      : DescriptorInfoMultipleMixin(fd) {}
+      : DescriptorInfoMultipleMixin(fd, false) {}
   virtual ~DescriptorInfoMultiple() {}
 };
 
 
 class EventHandlerImplementation {
  public:
   EventHandlerImplementation();
   ~EventHandlerImplementation();
 
   void UpdateEpollInstance(intptr_t old_mask, DescriptorInfo *di);
@@ skipping 20 matching lines @@
   bool shutdown_;
   int interrupt_fds_[2];
   int epoll_fd_;
   int timer_fd_;
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_EVENTHANDLER_LINUX_H_