Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/[css|rendering|clipboard]

Source/core/rendering/TrailingFloatsRootInlineBox.h

 /*
  * Copyright (C) 2010 Apple 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 12 matching lines @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TrailingFloatsRootInlineBox_h
 #define TrailingFloatsRootInlineBox_h
 
 #include "core/rendering/RootInlineBox.h"
 
 namespace blink {
 
-class TrailingFloatsRootInlineBox FINAL : public RootInlineBox {
+class TrailingFloatsRootInlineBox final : public RootInlineBox {
 public:
     TrailingFloatsRootInlineBox(RenderBlockFlow& block)
         : RootInlineBox(block)
     {
         setHasVirtualLogicalHeight();
     }
 
 private:
-    virtual float virtualLogicalHeight() const OVERRIDE { return 0; }
+    virtual float virtualLogicalHeight() const override { return 0; }
 };
 
 } // namespace blink
 
 #endif // TrailingFloatsRootInlineBox_h