replace OVERRIDE and FINAL with override and final in ash/

ash/accelerators/spoken_feedback_toggler.h

Index: ash/accelerators/spoken_feedback_toggler.h
diff --git a/ash/accelerators/spoken_feedback_toggler.h b/ash/accelerators/spoken_feedback_toggler.h
index 592c71c56e4d4be89154e5ad122ee024114bc601..067a7d1ec547510a596889fd46d8b217956a02f5 100644
--- a/ash/accelerators/spoken_feedback_toggler.h
+++ b/ash/accelerators/spoken_feedback_toggler.h
@@ -39,10 +39,10 @@ class ASH_EXPORT SpokenFeedbackToggler : public KeyHoldDetector::Delegate {
 
  private:
   // KeyHoldDetector overrides:
-  virtual bool ShouldProcessEvent(const ui::KeyEvent* event) const OVERRIDE;
-  virtual bool IsStartEvent(const ui::KeyEvent* event) const OVERRIDE;
-  virtual void OnKeyHold(const ui::KeyEvent* event) OVERRIDE;
-  virtual void OnKeyUnhold(const ui::KeyEvent* event) OVERRIDE;
+  virtual bool ShouldProcessEvent(const ui::KeyEvent* event) const override;
+  virtual bool IsStartEvent(const ui::KeyEvent* event) const override;
+  virtual void OnKeyHold(const ui::KeyEvent* event) override;
+  virtual void OnKeyUnhold(const ui::KeyEvent* event) override;
 
   SpokenFeedbackToggler();
   virtual ~SpokenFeedbackToggler();