Fix crash in raw_secure_server_socket_test.

runtime/bin/eventhandler_win.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_WIN_H_
 #define BIN_EVENTHANDLER_WIN_H_
 
 #if !defined(BIN_EVENTHANDLER_H_)
 #error Do not include eventhandler_win.h directly; use eventhandler.h instead.
 #endif
@@ skipping 206 matching lines @@
   void MarkClosing() { flags_ |= (1 << kClosing); }
   void MarkClosedRead() { flags_ |= (1 << kCloseRead); }
   void MarkClosedWrite() { flags_ |= (1 << kCloseWrite); }
   void MarkError() { flags_ |= (1 << kError); }
 
   virtual void EnsureInitialized(
     EventHandlerImplementation* event_handler) = 0;
 
   HANDLE handle() { return handle_; }
   Dart_Port port() { return port_; }
-  EventHandlerImplementation* event_handler() { return event_handler_; }
 
   void Lock();
   void Unlock();
 
   bool CreateCompletionPort(HANDLE completion_port);
 
   void Close();
   virtual void DoClose();
   virtual bool IsClosed() = 0;
 
@@ skipping 194 matching lines @@
                                            closed_(false) {
     LoadDisconnectEx();
     type_ = kClientSocket;
   }
 
   virtual ~ClientSocket() {
     // Don't delete this object until all pending requests have been handled.
     ASSERT(!HasPendingRead());
     ASSERT(!HasPendingWrite());
     ASSERT(next_ == NULL);
+    ASSERT(closed_ == true);
   };
 
   void Shutdown(int how);
 
   // Internal interface used by the event handler.
   virtual bool IssueRead();
   virtual bool IssueWrite();
   void IssueDisconnect();
   void DisconnectComplete(OverlappedBuffer* buffer);
 
@@ skipping 79 matching lines @@
 
   TimeoutQueue timeout_queue_;  // Time for next timeout.
   bool shutdown_;
   HANDLE completion_port_;
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_EVENTHANDLER_WIN_H_