Update WTF classes to use OVERRIDE / FINAL when needed

Source/wtf/Int8Array.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 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 15 matching lines @@
 
 #ifndef Int8Array_h
 #define Int8Array_h
 
 #include "wtf/IntegralTypedArrayBase.h"
 
 namespace WTF {
 
 class ArrayBuffer;
 
-class Int8Array : public IntegralTypedArrayBase<signed char> {
+class Int8Array FINAL : public IntegralTypedArrayBase<signed char> {
 public:
     static inline PassRefPtr<Int8Array> create(unsigned length);
     static inline PassRefPtr<Int8Array> create(const signed char* array, unsigned length);
     static inline PassRefPtr<Int8Array> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
 
     // Should only be used when it is known the entire array will be filled. Do
     // not return these results directly to JavaScript without filling first.
     static inline PassRefPtr<Int8Array> createUninitialized(unsigned length);
 
     using TypedArrayBase<signed char>::set;
     using IntegralTypedArrayBase<signed char>::set;
 
     inline PassRefPtr<Int8Array> subarray(int start) const;
     inline PassRefPtr<Int8Array> subarray(int start, int end) const;
 
-    virtual ViewType getType() const
+    virtual ViewType getType() const OVERRIDE
     {
         return TypeInt8;
     }
 
 private:
     inline Int8Array(PassRefPtr<ArrayBuffer>,
                    unsigned byteOffset,
                    unsigned length);
     // Make constructor visible to superclass.
     friend class TypedArrayBase<signed char>;
@@ skipping 32 matching lines @@
 PassRefPtr<Int8Array> Int8Array::subarray(int start, int end) const
 {
     return subarrayImpl<Int8Array>(start, end);
 }
 
 } // namespace WTF
 
 using WTF::Int8Array;
 
 #endif // Int8Array_h