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

chrome/browser/extensions/suspicious_extension_bubble_controller.h

Index: chrome/browser/extensions/suspicious_extension_bubble_controller.h
diff --git a/chrome/browser/extensions/suspicious_extension_bubble_controller.h b/chrome/browser/extensions/suspicious_extension_bubble_controller.h
index b13802b34078b1efa412737037424228cfa9a639..11464989a2e7297a76ac82d4c7f0f728f6e5dd71 100644
--- a/chrome/browser/extensions/suspicious_extension_bubble_controller.h
+++ b/chrome/browser/extensions/suspicious_extension_bubble_controller.h
@@ -21,14 +21,14 @@ class SuspiciousExtensionBubbleController
   static void ClearProfileListForTesting();
 
   explicit SuspiciousExtensionBubbleController(Profile* profile);
-  virtual ~SuspiciousExtensionBubbleController();
+  ~SuspiciousExtensionBubbleController() override;
 
   // Whether the controller knows of extensions to list in the bubble. Returns
   // true if so.
   bool ShouldShow();
 
   // ExtensionMessageBubbleController methods.
-  virtual void Show(ExtensionMessageBubble* bubble) override;
+  void Show(ExtensionMessageBubble* bubble) override;
 
  private:
   // A weak pointer to the profile we are associated with. Not owned by us.