Fix build.

runtime/vm/object.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 "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 4430 matching lines @@
     }
     return false;
   }
   uword Hash() const {
     return key_.ComputeCanonicalTableHash();
   }
   const Instance& key_;
 
  private:
   DISALLOW_ALLOCATION();
-  DISALLOW_COPY_AND_ASSIGN(CanonicalInstanceKey);
 };
 
 
 // Traits for looking up Canonical Instances based on a hash of the fields.
 class CanonicalInstanceTraits {
  public:
   static const char* Name() { return "CanonicalInstanceTraits"; }
   static bool ReportStats() { return false; }
 
   // Called when growing the table.
@@ skipping 17668 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart