Standardize usage of virtual/override/final specifiers.

chrome/browser/safe_browsing/download_feedback_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/browser/safe_browsing/download_feedback.h"
 
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 92 matching lines @@
       : file_task_runner_(content::BrowserThread::GetMessageLoopProxyForThread(
             content::BrowserThread::FILE)),
         io_task_runner_(content::BrowserThread::GetMessageLoopProxyForThread(
             content::BrowserThread::IO)),
         url_request_context_getter_(
             new net::TestURLRequestContextGetter(io_task_runner_)),
         feedback_finish_called_(false) {
     EXPECT_NE(io_task_runner_, file_task_runner_);
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     upload_file_path_ = temp_dir_.path().AppendASCII("test file");
     upload_file_data_ = "data";
     ASSERT_EQ(static_cast<int>(upload_file_data_.size()),
               base::WriteFile(upload_file_path_, upload_file_data_.data(),
                               upload_file_data_.size()));
     TwoPhaseUploader::RegisterFactory(&two_phase_uploader_factory_);
   }
 
-  virtual void TearDown() override {
-    TwoPhaseUploader::RegisterFactory(NULL);
-  }
+  void TearDown() override { TwoPhaseUploader::RegisterFactory(NULL); }
 
   FakeUploader* uploader() const {
     return two_phase_uploader_factory_.uploader_;
   }
 
   void FinishCallback(DownloadFeedback* feedback) {
     EXPECT_FALSE(feedback_finish_called_);
     feedback_finish_called_ = true;
     delete feedback;
   }
@@ skipping 89 matching lines @@
   EXPECT_TRUE(base::PathExists(upload_file_path_));
 
   delete feedback;
   EXPECT_FALSE(feedback_finish_called_);
 
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(base::PathExists(upload_file_path_));
 }
 
 }  // namespace safe_browsing