Standardize usage of virtual/override/final specifiers.

components/omnibox/keyword_provider_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
 #include "components/omnibox/autocomplete_match.h"
 #include "components/omnibox/autocomplete_scheme_classifier.h"
@@ skipping 29 matching lines @@
   };
 
   template<class ResultType>
   struct TestData {
     const base::string16 input;
     const size_t num_results;
     const MatchType<ResultType> output[3];
   };
 
   KeywordProviderTest() : kw_provider_(NULL) { }
-  virtual ~KeywordProviderTest() { }
+  ~KeywordProviderTest() override {}
 
-  virtual void SetUp();
-  virtual void TearDown();
+  void SetUp() override;
+  void TearDown() override;
 
   template<class ResultType>
   void RunTest(TestData<ResultType>* keyword_cases,
                int num_cases,
                ResultType AutocompleteMatch::* member);
 
  protected:
   static const TemplateURLService::Initializer kTestData[];
 
   scoped_refptr<KeywordProvider> kw_provider_;
@@ skipping 296 matching lines @@
   TestData<GURL> url_cases[] = {
     { ASCIIToUTF16("a 1 2 3"), 3,
       { { GURL("aa.com?a=b&foo=1+2+3"), false },
         { GURL("bogus URL 1+2+3"), false },
         { GURL("http://aaaa/?aaaa=1&b=1+2+3&c"), false } } },
   };
 
   RunTest<GURL>(url_cases, arraysize(url_cases),
                 &AutocompleteMatch::destination_url);
 }