Standardize usage of virtual/override/final specifiers.

components/component_updater/test/crx_downloader_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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
   PathService::Get(base::DIR_SOURCE_ROOT, &path);
   return path.AppendASCII("components").AppendASCII("test").AppendASCII("data")
       .AppendASCII("component_updater").AppendASCII(file);
 }
 
 }  // namespace
 
 class CrxDownloaderTest : public testing::Test {
  public:
   CrxDownloaderTest();
-  virtual ~CrxDownloaderTest();
+  ~CrxDownloaderTest() override;
 
   // Overrides from testing::Test.
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   void Quit();
   void RunThreads();
   void RunThreadsUntilIdle();
 
   void DownloadComplete(int crx_context, const CrxDownloader::Result& result);
 
   void DownloadProgress(int crx_context, const CrxDownloader::Result& result);
 
  protected:
@@ skipping 311 matching lines @@
 
   EXPECT_EQ(0, get_interceptor_->GetHitCount());
 
   EXPECT_EQ(1, num_download_complete_calls_);
   EXPECT_EQ(kExpectedContext, crx_context_);
   EXPECT_NE(0, download_complete_result_.error);
   EXPECT_TRUE(download_complete_result_.response.empty());
 }
 
 }  // namespace component_updater