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

Source/core/accessibility/AXSVGRoot.h

Index: Source/core/accessibility/AXSVGRoot.h
diff --git a/Source/core/accessibility/AXSVGRoot.h b/Source/core/accessibility/AXSVGRoot.h
index c1bf89eb791442d87bb770de712b2f48ebc38fd4..c78dd01a7108c0580449b1015c33d8ca1f6a9be8 100644
--- a/Source/core/accessibility/AXSVGRoot.h
+++ b/Source/core/accessibility/AXSVGRoot.h
@@ -33,7 +33,7 @@
 
 namespace blink {
 
-class AXSVGRoot FINAL : public AXRenderObject {
+class AXSVGRoot final : public AXRenderObject {
 
 protected:
     explicit AXSVGRoot(RenderObject*);
@@ -46,8 +46,8 @@ public:
 private:
     AXObject* m_parent;
 
-    virtual AXObject* parentObject() const OVERRIDE;
-    virtual bool isAXSVGRoot() const OVERRIDE { return true; }
+    virtual AXObject* parentObject() const override;
+    virtual bool isAXSVGRoot() const override { return true; }
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXSVGRoot, isAXSVGRoot());