Standardize usage of virtual/override/final specifiers.

chrome/browser/safe_browsing/browser_feature_extractor_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.
 
 #include "chrome/browser/safe_browsing/browser_feature_extractor.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 60 matching lines @@
   }
 
   virtual ~MockClientSideDetectionHost() {}
 
   MOCK_METHOD1(IsBadIpAddress, bool(const std::string&));
 };
 }  // namespace
 
 class BrowserFeatureExtractorTest : public ChromeRenderViewHostTestHarness {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
     ASSERT_TRUE(profile()->CreateHistoryService(
         true /* delete_file */, false /* no_db */));
 
     db_manager_ = new StrictMock<MockSafeBrowsingDatabaseManager>(
         SafeBrowsingService::CreateSafeBrowsingService());
     host_.reset(new StrictMock<MockClientSideDetectionHost>(
         web_contents(), db_manager_.get()));
     extractor_.reset(
         new BrowserFeatureExtractor(web_contents(), host_.get()));
     num_pending_ = 0;
     browse_info_.reset(new BrowseInfo);
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     extractor_.reset();
     host_.reset();
     db_manager_ = NULL;
     profile()->DestroyHistoryService();
     ChromeRenderViewHostTestHarness::TearDown();
     ASSERT_EQ(0, num_pending_);
   }
 
   HistoryService* history_service() {
     return HistoryServiceFactory::GetForProfile(profile(),
@@ skipping 543 matching lines @@
     // First ip is good but all the others are bad.
     EXPECT_CALL(*db_manager_, MatchMalwareIP(ip)).WillOnce(Return(i > 0));
   }
 
   ExtractMalwareFeatures(&request);
   // The number of IP matched url we store is capped at 5 IPs per request.
   EXPECT_EQ(5, request.bad_ip_url_info_size());
 }
 
 }  // namespace safe_browsing