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

Source/core/accessibility/AXMockObject.h

Index: Source/core/accessibility/AXMockObject.h
diff --git a/Source/core/accessibility/AXMockObject.h b/Source/core/accessibility/AXMockObject.h
index 782f29d72373d5c3fa553e410b4a383ab8ad8ecc..96b0d9842b308a5eac495c0e8ed50fcfb2807ca9 100644
--- a/Source/core/accessibility/AXMockObject.h
+++ b/Source/core/accessibility/AXMockObject.h
@@ -40,19 +40,19 @@ public:
     virtual void setParent(AXObject* parent) { m_parent = parent; }
 
     // AXObject overrides.
-    virtual AXObject* parentObject() const OVERRIDE { return m_parent; }
-    virtual bool isEnabled() const OVERRIDE { return true; }
+    virtual AXObject* parentObject() const override { return m_parent; }
+    virtual bool isEnabled() const override { return true; }
 
 protected:
     AXObject* m_parent;
 
     // Must be called when the parent object clears its children.
-    virtual void detachFromParent() OVERRIDE { m_parent = 0; }
+    virtual void detachFromParent() override { m_parent = 0; }
 
 private:
-    virtual bool isMockObject() const OVERRIDE FINAL { return true; }
+    virtual bool isMockObject() const override final { return true; }
 
-    virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
+    virtual bool computeAccessibilityIsIgnored() const override;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXMockObject, isMockObject());