Update WTF classes to use OVERRIDE / FINAL when needed

Source/wtf/Float64Array.h

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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 14 matching lines @@
  */
 
 #ifndef Float64Array_h
 #define Float64Array_h
 
 #include "wtf/TypedArrayBase.h"
 #include "wtf/MathExtras.h"
 
 namespace WTF {
 
-class Float64Array : public TypedArrayBase<double> {
+class Float64Array FINAL : public TypedArrayBase<double> {
 public:
     static inline PassRefPtr<Float64Array> create(unsigned length);
     static inline PassRefPtr<Float64Array> create(const double* array, unsigned length);
     static inline PassRefPtr<Float64Array> 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<Float64Array> createUninitialized(unsigned length);
 
     using TypedArrayBase<double>::set;
 
     void set(unsigned index, double value)
     {
         if (index >= TypedArrayBase<double>::m_length)
             return;
         TypedArrayBase<double>::data()[index] = static_cast<double>(value);
     }
 
     inline PassRefPtr<Float64Array> subarray(int start) const;
     inline PassRefPtr<Float64Array> subarray(int start, int end) const;
 
-    virtual ViewType getType() const
+    virtual ViewType getType() const OVERRIDE
     {
         return TypeFloat64;
     }
 
 private:
     inline Float64Array(PassRefPtr<ArrayBuffer>,
                  unsigned byteOffset,
                  unsigned length);
     // Make constructor visible to superclass.
     friend class TypedArrayBase<double>;
@@ skipping 32 matching lines @@
 PassRefPtr<Float64Array> Float64Array::subarray(int start, int end) const
 {
     return subarrayImpl<Float64Array>(start, end);
 }
 
 } // namespace WTF
 
 using WTF::Float64Array;
 
 #endif // Float64Array_h