C++ profiles processor: put under #ifdef and fix issues.

src/circular-queue.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 101 matching lines @@
 
   const int record_size_;
   const int chunk_size_in_bytes_;
   const int chunk_size_;
   const int buffer_size_;
   const int producer_consumer_distance_;
   Cell* buffer_;
   byte* positions_;
   ProducerPosition* producer_pos_;
   ConsumerPosition* consumer_pos_;
+
+  DISALLOW_COPY_AND_ASSIGN(SamplingCircularQueue);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_CIRCULAR_QUEUE_H_