Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/gpu/three_d_api_observer.cc

Index: chrome/browser/gpu/three_d_api_observer.cc
diff --git a/chrome/browser/gpu/three_d_api_observer.cc b/chrome/browser/gpu/three_d_api_observer.cc
index b551b2d59d8e52cd78174491dba61c52c8e0e433..d2f8d8e61211acf9f4ca6c75089e1109d9380983 100644
--- a/chrome/browser/gpu/three_d_api_observer.cc
+++ b/chrome/browser/gpu/three_d_api_observer.cc
@@ -35,18 +35,17 @@ class ThreeDAPIInfoBarDelegate : public ConfirmInfoBarDelegate {
   };
 
   ThreeDAPIInfoBarDelegate(const GURL& url, content::ThreeDAPIType requester);
-  virtual ~ThreeDAPIInfoBarDelegate();
+  ~ThreeDAPIInfoBarDelegate() override;
 
   // ConfirmInfoBarDelegate:
-  virtual bool EqualsDelegate(
-      infobars::InfoBarDelegate* delegate) const override;
-  virtual int GetIconID() const override;
-  virtual base::string16 GetMessageText() const override;
-  virtual base::string16 GetButtonLabel(InfoBarButton button) const override;
-  virtual bool Accept() override;
-  virtual bool Cancel() override;
-  virtual base::string16 GetLinkText() const override;
-  virtual bool LinkClicked(WindowOpenDisposition disposition) override;
+  bool EqualsDelegate(infobars::InfoBarDelegate* delegate) const override;
+  int GetIconID() const override;
+  base::string16 GetMessageText() const override;
+  base::string16 GetButtonLabel(InfoBarButton button) const override;
+  bool Accept() override;
+  bool Cancel() override;
+  base::string16 GetLinkText() const override;
+  bool LinkClicked(WindowOpenDisposition disposition) override;
 
   GURL url_;
   content::ThreeDAPIType requester_;