Update bindings classes to use OVERRIDE / FINAL when needed

Source/bindings/v8/V8StringResource.h

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 93 matching lines @@
 private:
     static int memoryConsumption(const String& string)
     {
         return string.length() * (string.is8Bit() ? sizeof(LChar) : sizeof(UChar));
     }
 #ifndef NDEBUG
     WTF::ThreadIdentifier m_threadId;
 #endif
 };
 
-class WebCoreStringResource16 : public WebCoreStringResourceBase, public v8::String::ExternalStringResource {
+class WebCoreStringResource16 FINAL : public WebCoreStringResourceBase, public v8::String::ExternalStringResource {
 public:
     explicit WebCoreStringResource16(const String& string)
         : WebCoreStringResourceBase(string)
     {
         ASSERT(!string.is8Bit());
     }
 
     explicit WebCoreStringResource16(const AtomicString& string)
         : WebCoreStringResourceBase(string)
     {
         ASSERT(!string.is8Bit());
     }
 
     virtual size_t length() const OVERRIDE { return m_plainString.impl()->length(); }
     virtual const uint16_t* data() const OVERRIDE
     {
         return reinterpret_cast<const uint16_t*>(m_plainString.impl()->characters16());
     }
 };
 
-class WebCoreStringResource8 : public WebCoreStringResourceBase, public v8::String::ExternalAsciiStringResource {
+class WebCoreStringResource8 FINAL : public WebCoreStringResourceBase, public v8::String::ExternalAsciiStringResource {
 public:
     explicit WebCoreStringResource8(const String& string)
         : WebCoreStringResourceBase(string)
     {
         ASSERT(string.is8Bit());
     }
 
     explicit WebCoreStringResource8(const AtomicString& string)
         : WebCoreStringResourceBase(string)
     {
@@ skipping 102 matching lines @@
     if (m_v8Object.IsEmpty() || m_v8Object->IsNull() || m_v8Object->IsUndefined()) {
         setString(String());
         return true;
     }
     return prepareBase();
 }
 
 } // namespace WebCore
 
 #endif // V8StringResource_h