Standardize usage of virtual/override/final in components/

components/search_engines/template_url_parser_unittest.cc

Index: components/search_engines/template_url_parser_unittest.cc
diff --git a/components/search_engines/template_url_parser_unittest.cc b/components/search_engines/template_url_parser_unittest.cc
index 4331be0d64604cd3272453de1ff6ed3a7a111af9..15214fff51f85cd1b4a7a5a2085a6a13517e1144 100644
--- a/components/search_engines/template_url_parser_unittest.cc
+++ b/components/search_engines/template_url_parser_unittest.cc
@@ -21,10 +21,9 @@ using base::ASCIIToUTF16;
 class ParamFilterImpl : public TemplateURLParser::ParameterFilter {
  public:
   ParamFilterImpl(std::string name_str, std::string value_str);
-  virtual ~ParamFilterImpl();
+  ~ParamFilterImpl() override;
 
-  virtual bool KeepParameter(const std::string& key,
-                             const std::string& value) override;
+  bool KeepParameter(const std::string& key, const std::string& value) override;
 
  private:
   std::string name_str_;