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

chrome/browser/extensions/extension_warning_badge_service.cc

Index: chrome/browser/extensions/extension_warning_badge_service.cc
diff --git a/chrome/browser/extensions/extension_warning_badge_service.cc b/chrome/browser/extensions/extension_warning_badge_service.cc
index f152d9551244663f69aa548c5dc8b3dd90aae401..085cac9e0a98970cedf586cbce849f0c709b9fd2 100644
--- a/chrome/browser/extensions/extension_warning_badge_service.cc
+++ b/chrome/browser/extensions/extension_warning_badge_service.cc
@@ -24,18 +24,18 @@ namespace {
 class ErrorBadge : public GlobalError {
  public:
   explicit ErrorBadge(ExtensionWarningBadgeService* badge_service);
-  virtual ~ErrorBadge();
+  ~ErrorBadge() override;
 
   // Implementation for GlobalError:
-  virtual bool HasMenuItem() override;
-  virtual int MenuItemCommandID() override;
-  virtual base::string16 MenuItemLabel() override;
-  virtual void ExecuteMenuItem(Browser* browser) override;
-
-  virtual bool HasBubbleView() override;
-  virtual bool HasShownBubbleView() override;
-  virtual void ShowBubbleView(Browser* browser) override;
-  virtual GlobalErrorBubbleViewBase* GetBubbleView() override;
+  bool HasMenuItem() override;
+  int MenuItemCommandID() override;
+  base::string16 MenuItemLabel() override;
+  void ExecuteMenuItem(Browser* browser) override;
+
+  bool HasBubbleView() override;
+  bool HasShownBubbleView() override;
+  void ShowBubbleView(Browser* browser) override;
+  GlobalErrorBubbleViewBase* GetBubbleView() override;
 
   static int GetMenuItemCommandID();