Update WTF classes to use OVERRIDE / FINAL when needed

Source/wtf/Int32Array.h

Index: Source/wtf/Int32Array.h
diff --git a/Source/wtf/Int32Array.h b/Source/wtf/Int32Array.h
index 0a5091f81ce287dda3514a79b7811653a4b69ea1..24d4bbac9fe7f9051fff89e954aa8abb8cfc8060 100644
--- a/Source/wtf/Int32Array.h
+++ b/Source/wtf/Int32Array.h
@@ -31,7 +31,7 @@
 
 namespace WTF {
 
-class Int32Array : public IntegralTypedArrayBase<int> {
+class Int32Array FINAL : public IntegralTypedArrayBase<int> {
 public:
     static inline PassRefPtr<Int32Array> create(unsigned length);
     static inline PassRefPtr<Int32Array> create(const int* array, unsigned length);
@@ -47,7 +47,7 @@ public:
     inline PassRefPtr<Int32Array> subarray(int start) const;
     inline PassRefPtr<Int32Array> subarray(int start, int end) const;
 
-    virtual ViewType getType() const
+    virtual ViewType getType() const OVERRIDE
     {
         return TypeInt32;
     }