Standardize usage of virtual/override/final specifiers.

chrome/renderer/searchbox/search_bouncer_unittest.cc

 // Copyright 2013 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 "chrome/renderer/searchbox/search_bouncer.h"
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/common/render_messages.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 class SearchBouncerTest : public testing::Test {
  public:
-  virtual void SetUp() {
+  void SetUp() override {
     bouncer_.reset(new SearchBouncer);
     std::vector<GURL> search_urls;
     search_urls.push_back(GURL("http://example.com/search"));
     search_urls.push_back(GURL("http://example.com/search2"));
     bouncer_->OnSetSearchURLs(search_urls, GURL("http://example.com/newtab"));
   }
 
   scoped_ptr<SearchBouncer> bouncer_;
 };
 
@@ skipping 12 matching lines @@
 
 TEST_F(SearchBouncerTest, SetSearchURLs) {
   std::vector<GURL> search_urls;
   search_urls.push_back(GURL("http://other.example.com/search"));
   const GURL new_tab_page_url(GURL("http://other.example.com/newtab"));
   EXPECT_TRUE(bouncer_->OnControlMessageReceived(
       ChromeViewMsg_SetSearchURLs(search_urls, new_tab_page_url)));
   EXPECT_EQ(search_urls, bouncer_->search_urls_);
   EXPECT_EQ(new_tab_page_url, bouncer_->new_tab_page_url_);
 }