Update WTF classes to use OVERRIDE / FINAL when needed

Source/wtf/Uint8Array.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 31 matching lines @@
     // 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<Uint8Array> createUninitialized(unsigned length);
 
     using TypedArrayBase<unsigned char>::set;
     using IntegralTypedArrayBase<unsigned char>::set;
 
     inline PassRefPtr<Uint8Array> subarray(int start) const;
     inline PassRefPtr<Uint8Array> subarray(int start, int end) const;
 
-    virtual ViewType getType() const
+    virtual ViewType getType() const OVERRIDE
     {
         return TypeUint8;
     }
 
 protected:
     inline Uint8Array(PassRefPtr<ArrayBuffer>,
                            unsigned byteOffset,
                            unsigned length);
     // Make constructor visible to superclass.
     friend class TypedArrayBase<unsigned char>;
@@ skipping 32 matching lines @@
 PassRefPtr<Uint8Array> Uint8Array::subarray(int start, int end) const
 {
     return subarrayImpl<Uint8Array>(start, end);
 }
 
 } // namespace WTF
 
 using WTF::Uint8Array;
 
 #endif // Uint8Array_h