Standardize usage of virtual/override/final in components/

components/infobars/core/confirm_infobar_delegate.h

Index: components/infobars/core/confirm_infobar_delegate.h
diff --git a/components/infobars/core/confirm_infobar_delegate.h b/components/infobars/core/confirm_infobar_delegate.h
index f88206cf7197a70322264c34cb7054b563b21834..1e1930d19d1a74aa8e63981a41e0e92f4e05e156 100644
--- a/components/infobars/core/confirm_infobar_delegate.h
+++ b/components/infobars/core/confirm_infobar_delegate.h
@@ -23,10 +23,10 @@ class ConfirmInfoBarDelegate : public infobars::InfoBarDelegate {
     BUTTON_CANCEL = 1 << 1,
   };
 
-  virtual ~ConfirmInfoBarDelegate();
+  ~ConfirmInfoBarDelegate() override;
 
   // Returns the InfoBar type to be displayed for the InfoBar.
-  virtual InfoBarAutomationType GetInfoBarAutomationType() const override;
+  InfoBarAutomationType GetInfoBarAutomationType() const override;
 
   // Returns the message string to be displayed for the InfoBar.
   virtual base::string16 GetMessageText() const = 0;
@@ -70,14 +70,12 @@ class ConfirmInfoBarDelegate : public infobars::InfoBarDelegate {
   static scoped_ptr<infobars::InfoBar> CreateInfoBar(
       scoped_ptr<ConfirmInfoBarDelegate> delegate);
 
-  virtual bool ShouldExpireInternal(
-      const NavigationDetails& details) const override;
+  bool ShouldExpireInternal(const NavigationDetails& details) const override;
 
  private:
   // InfoBarDelegate:
-  virtual bool EqualsDelegate(
-      infobars::InfoBarDelegate* delegate) const override;
-  virtual ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate() override;
+  bool EqualsDelegate(infobars::InfoBarDelegate* delegate) const override;
+  ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate() override;
 
   DISALLOW_COPY_AND_ASSIGN(ConfirmInfoBarDelegate);
 };