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

chrome/browser/ui/search/search_delegate.h

Index: chrome/browser/ui/search/search_delegate.h
diff --git a/chrome/browser/ui/search/search_delegate.h b/chrome/browser/ui/search/search_delegate.h
index 9e4807d272bf15a42ca5f882fcf5217d5d978e73..45de92671819ae8a05013212ef8b9a9695894269 100644
--- a/chrome/browser/ui/search/search_delegate.h
+++ b/chrome/browser/ui/search/search_delegate.h
@@ -24,11 +24,11 @@ class SearchModel;
 class SearchDelegate : public SearchModelObserver {
  public:
   explicit SearchDelegate(SearchModel* browser_search_model);
-  virtual ~SearchDelegate();
+  ~SearchDelegate() override;
 
   // Overrides for SearchModelObserver:
-  virtual void ModelChanged(const SearchModel::State& old_state,
-                            const SearchModel::State& new_state) override;
+  void ModelChanged(const SearchModel::State& old_state,
+                    const SearchModel::State& new_state) override;
 
   // When the active tab is changed, the model state of this new active tab is
   // propagated to the browser.