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

Source/core/rendering/RenderFullScreen.h

Index: Source/core/rendering/RenderFullScreen.h
diff --git a/Source/core/rendering/RenderFullScreen.h b/Source/core/rendering/RenderFullScreen.h
index 2317c29a30c5998f2a5c57033047c530f0eb362e..24e8b0b760752534ba050e8938284a28f404f4da 100644
--- a/Source/core/rendering/RenderFullScreen.h
+++ b/Source/core/rendering/RenderFullScreen.h
@@ -30,13 +30,13 @@
 
 namespace blink {
 
-class RenderFullScreen FINAL : public RenderFlexibleBox {
+class RenderFullScreen final : public RenderFlexibleBox {
 public:
     static RenderFullScreen* createAnonymous(Document*);
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
-    virtual bool isRenderFullScreen() const OVERRIDE { return true; }
-    virtual const char* renderName() const OVERRIDE { return "RenderFullScreen"; }
+    virtual bool isRenderFullScreen() const override { return true; }
+    virtual const char* renderName() const override { return "RenderFullScreen"; }
 
     void setPlaceholder(RenderBlock*);
     RenderBlock* placeholder() { return m_placeholder; }
@@ -48,7 +48,7 @@ public:
 
 private:
     RenderFullScreen();
-    virtual void willBeDestroyed() OVERRIDE;
+    virtual void willBeDestroyed() override;
 
 protected:
     RawPtrWillBeMember<RenderBlock> m_placeholder;