Use FINAL macro for classes whose virtual destructor was removed

Source/platform/PODArena.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 24 matching lines @@
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 // An arena which allocates only Plain Old Data (POD), or classes and
 // structs bottoming out in Plain Old Data. NOTE: the constructors of
 // the objects allocated in this arena are called, but _not_ their
 // destructors.
 
-class PODArena : public RefCounted<PODArena> {
+class PODArena FINAL : public RefCounted<PODArena> {
 public:
     // The arena is configured with an allocator, which is responsible
     // for allocating and freeing chunks of memory at a time.
     class Allocator : public RefCounted<Allocator> {
     public:
         virtual void* allocate(size_t size) = 0;
         virtual void free(void* ptr) = 0;
     protected:
         virtual ~Allocator() { }
         friend class WTF::RefCounted<Allocator>;
@@ skipping 83 matching lines @@
     }
 
     // Rounds up the given allocation size to the specified alignment.
     size_t roundUp(size_t size, size_t alignment)
     {
         ASSERT(!(alignment % 2));
         return (size + alignment - 1) & ~(alignment - 1);
     }
 
     // Manages a chunk of memory and individual allocations out of it.
-    class Chunk {
+    class Chunk FINAL {
         WTF_MAKE_NONCOPYABLE(Chunk);
     public:
         // Allocates a block of memory of the given size from the passed
         // Allocator.
         Chunk(Allocator* allocator, size_t size)
             : m_allocator(allocator)
             , m_size(size)
             , m_currentOffset(0)
         {
             m_base = static_cast<uint8_t*>(m_allocator->allocate(size));
@@ skipping 31 matching lines @@
 
     RefPtr<Allocator> m_allocator;
     Chunk* m_current;
     size_t m_currentChunkSize;
     Vector<OwnPtr<Chunk> > m_chunks;
 };
 
 } // namespace WebCore
 
 #endif // PODArena_h