Cleanup in //runtime/bin

runtime/bin/eventhandler_macos.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_MACOS_H_
 #define BIN_EVENTHANDLER_MACOS_H_
 
 #if !defined(BIN_EVENTHANDLER_H_)
 #error Do not include eventhandler_macos.h directly; use eventhandler.h instead.
 #endif
@@ skipping 29 matching lines @@
   }
 
   bool tracked_by_kqueue() { return tracked_by_kqueue_; }
 
   bool HasReadEvent();
 
   bool HasWriteEvent();
 
  protected:
   bool tracked_by_kqueue_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DescriptorInfo);
 };
 
 
 class DescriptorInfoSingle
     : public DescriptorInfoSingleMixin<DescriptorInfo> {
  public:
   explicit DescriptorInfoSingle(intptr_t fd)
       : DescriptorInfoSingleMixin(fd, false) {}
   virtual ~DescriptorInfoSingle() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DescriptorInfoSingle);
 };
 
 
 class DescriptorInfoMultiple
     : public DescriptorInfoMultipleMixin<DescriptorInfo> {
  public:
   explicit DescriptorInfoMultiple(intptr_t fd)
       : DescriptorInfoMultipleMixin(fd, false) {}
   virtual ~DescriptorInfoMultiple() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DescriptorInfoMultiple);
 };
 
 
 class EventHandlerImplementation {
  public:
   EventHandlerImplementation();
   ~EventHandlerImplementation();
 
   void UpdateKQueueInstance(intptr_t old_mask, DescriptorInfo *di);
 
@@ skipping 14 matching lines @@
   void SetPort(intptr_t fd, Dart_Port dart_port, intptr_t mask);
   intptr_t GetEvents(struct kevent* event, DescriptorInfo* di);
   static void* GetHashmapKeyFromFd(intptr_t fd);
   static uint32_t GetHashmapHashFromFd(intptr_t fd);
 
   HashMap socket_map_;
   TimeoutQueue timeout_queue_;
   bool shutdown_;
   int interrupt_fds_[2];
   int kqueue_fd_;
+
+  DISALLOW_COPY_AND_ASSIGN(EventHandlerImplementation);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_EVENTHANDLER_MACOS_H_