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

Source/core/rendering/FilterEffectRenderer.h

Index: Source/core/rendering/FilterEffectRenderer.h
diff --git a/Source/core/rendering/FilterEffectRenderer.h b/Source/core/rendering/FilterEffectRenderer.h
index 4761ea1d4c40d5983d4e3603ac5dbfb9430a7990..39f1cae96ffdf7291ea3de925f9ebed7c99eab7f 100644
--- a/Source/core/rendering/FilterEffectRenderer.h
+++ b/Source/core/rendering/FilterEffectRenderer.h
@@ -71,7 +71,7 @@ private:
     bool m_haveFilterEffect;
 };
 
-class FilterEffectRenderer FINAL : public Filter
+class FilterEffectRenderer final : public Filter
 {
     WTF_MAKE_FAST_ALLOCATED;
 public:
@@ -85,7 +85,7 @@ public:
         m_sourceDrawingRegion = sourceImageRect;
         m_graphicsBufferAttached = false;
     }
-    virtual IntRect sourceImageRect() const OVERRIDE { return m_sourceDrawingRegion; }
+    virtual IntRect sourceImageRect() const override { return m_sourceDrawingRegion; }
 
     GraphicsContext* inputContext();
     ImageBuffer* output() const { return lastEffect()->asImageBuffer(); }