Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/editing

Source/core/editing/DOMSelection.h

Index: Source/core/editing/DOMSelection.h
diff --git a/Source/core/editing/DOMSelection.h b/Source/core/editing/DOMSelection.h
index dab592df64399e1f8eb35282c62705aad9dcdc25..0a02168ae30cd71c1a9ecf2dd44956c1a5feda14 100644
--- a/Source/core/editing/DOMSelection.h
+++ b/Source/core/editing/DOMSelection.h
@@ -47,7 +47,7 @@ class Range;
 class TreeScope;
 class VisibleSelection;
 
-class DOMSelection FINAL : public RefCountedWillBeGarbageCollected<DOMSelection>, public ScriptWrappable, public DOMWindowProperty {
+class DOMSelection final : public RefCountedWillBeGarbageCollected<DOMSelection>, public ScriptWrappable, public DOMWindowProperty {
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMSelection);
 public:
@@ -96,7 +96,7 @@ public:
     // Microsoft Selection Object API
     void empty();
 
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
 private:
     explicit DOMSelection(const TreeScope*);