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

chrome/browser/ui/app_list/search/common/json_response_fetcher.h

Index: chrome/browser/ui/app_list/search/common/json_response_fetcher.h
diff --git a/chrome/browser/ui/app_list/search/common/json_response_fetcher.h b/chrome/browser/ui/app_list/search/common/json_response_fetcher.h
index b391db13402616b17dc63bfc06266e3adb8ac083..0158748b65f5783c8a7b40dd6dd2e19baf0397d1 100644
--- a/chrome/browser/ui/app_list/search/common/json_response_fetcher.h
+++ b/chrome/browser/ui/app_list/search/common/json_response_fetcher.h
@@ -39,7 +39,7 @@ class JSONResponseFetcher : public net::URLFetcherDelegate {
 
   JSONResponseFetcher(const Callback& callback,
                       net::URLRequestContextGetter* context_getter);
-  virtual ~JSONResponseFetcher();
+  ~JSONResponseFetcher() override;
 
   // Starts to fetch results for the given |query_url|.
   void Start(const GURL& query_url);
@@ -51,7 +51,7 @@ class JSONResponseFetcher : public net::URLFetcherDelegate {
   void OnJsonParseError(const std::string& error);
 
   // net::URLFetcherDelegate overrides:
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) override;
+  void OnURLFetchComplete(const net::URLFetcher* source) override;
 
   Callback callback_;
   net::URLRequestContextGetter* context_getter_;