Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/webui/ntp/suggestions_combiner_unittest.cc

 // Copyright (c) 2012 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.
 
 // TODO(beaudoin): What is really needed here?
 
 #include <deque>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 196 matching lines @@
   Profile* profile_;
   SuggestionsHandler* suggestions_handler_;
   SuggestionsCombiner* combiner_;
 
   void Reset() {
     delete combiner_;
     combiner_ = new SuggestionsCombiner(suggestions_handler_, profile_);
   }
 
  private:
-  virtual void SetUp() {
+  void SetUp() override {
     profile_ = new TestingProfile();
     suggestions_handler_ = new SuggestionsHandler();
     combiner_ = new SuggestionsCombiner(suggestions_handler_, profile_);
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     delete combiner_;
     delete suggestions_handler_;
     delete profile_;
   }
 
   DISALLOW_COPY_AND_ASSIGN(SuggestionsCombinerTest);
 };
 
 TEST_F(SuggestionsCombinerTest, NoSource) {
   combiner_->FetchItems(NULL);
@@ skipping 53 matching lines @@
       } else {
         EXPECT_EQ(description.results[j], static_cast<const char*>(NULL)) <<
             " test index:" << i;
       }
     }
 
     Reset();
   }
 }