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

chrome/browser/ui/app_list/search/omnibox_provider.cc

Index: chrome/browser/ui/app_list/search/omnibox_provider.cc
diff --git a/chrome/browser/ui/app_list/search/omnibox_provider.cc b/chrome/browser/ui/app_list/search/omnibox_provider.cc
index c2787414f44d39e9cf5d62a16051bdf1a6dbc0f6..e32a7b932c76670b3ee167c3a0ac79c19527ecce 100644
--- a/chrome/browser/ui/app_list/search/omnibox_provider.cc
+++ b/chrome/browser/ui/app_list/search/omnibox_provider.cc
@@ -91,10 +91,10 @@ class OmniboxResult : public SearchResult {
     UpdateIcon();
     UpdateTitleAndDetails();
   }
-  virtual ~OmniboxResult() {}
+  ~OmniboxResult() override {}
 
   // SearchResult overrides:
-  virtual void Open(int event_flags) override {
+  void Open(int event_flags) override {
     RecordHistogram(OMNIBOX_SEARCH_RESULT);
     list_controller_->OpenURL(profile_,
                               match_.destination_url,
@@ -102,7 +102,7 @@ class OmniboxResult : public SearchResult {
                               ui::DispositionFromEventFlags(event_flags));
   }
 
-  virtual scoped_ptr<SearchResult> Duplicate() override {
+  scoped_ptr<SearchResult> Duplicate() override {
     return scoped_ptr<SearchResult>(new OmniboxResult(
         profile_, list_controller_, autocomplete_controller_, match_));
   }