Update rendering classes to use OVERRIDE / FINAL when needed

Source/core/rendering/RenderProgress.h

Index: Source/core/rendering/RenderProgress.h
diff --git a/Source/core/rendering/RenderProgress.h b/Source/core/rendering/RenderProgress.h
index bd1cac97f15c5b543a485b01cc8771af48f8355f..c1014d2768755586b002db5e6154d08bbd8f345e 100644
--- a/Source/core/rendering/RenderProgress.h
+++ b/Source/core/rendering/RenderProgress.h
@@ -37,13 +37,13 @@ public:
     double animationStartTime() const { return m_animationStartTime; }
 
     bool isDeterminate() const;
-    virtual void updateFromElement();
+    virtual void updateFromElement() OVERRIDE;
 
     HTMLProgressElement* progressElement() const;
 
 private:
-    virtual const char* renderName() const { return "RenderProgress"; }
-    virtual bool isProgress() const { return true; }
+    virtual const char* renderName() const OVERRIDE { return "RenderProgress"; }
+    virtual bool isProgress() const OVERRIDE { return true; }
     virtual bool supportsPartialLayout() const OVERRIDE { return false; }
 
     void animationTimerFired(Timer<RenderProgress>*);