Update accessibility classes to use OVERRIDE / FINAL when needed

Source/core/accessibility/AXProgressIndicator.h

Index: Source/core/accessibility/AXProgressIndicator.h
diff --git a/Source/core/accessibility/AXProgressIndicator.h b/Source/core/accessibility/AXProgressIndicator.h
index 13ea890b43b4dd8dff391a42477f230777fb8dee..1d4dc78a39a75695e14b01027ac88cc2f6b4393f 100644
--- a/Source/core/accessibility/AXProgressIndicator.h
+++ b/Source/core/accessibility/AXProgressIndicator.h
@@ -28,12 +28,12 @@ namespace WebCore {
 class HTMLProgressElement;
 class RenderProgress;
 
-class AXProgressIndicator : public AXRenderObject {
+class AXProgressIndicator FINAL : public AXRenderObject {
 public:
     static PassRefPtr<AXProgressIndicator> create(RenderProgress*);
 
 private:
-    virtual AccessibilityRole roleValue() const { return ProgressIndicatorRole; }
+    virtual AccessibilityRole roleValue() const OVERRIDE { return ProgressIndicatorRole; }
 
     virtual bool isProgressIndicator() const OVERRIDE { return true; }