Standardize usage of virtual/override/final specifiers.

components/component_updater/test/update_checker_unittest.cc

 // Copyright 2014 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/compiler_specific.h"
 #include "base/files/file_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 20 matching lines @@
   PathService::Get(base::DIR_SOURCE_ROOT, &path);
   return path.AppendASCII("components").AppendASCII("test").AppendASCII("data")
       .AppendASCII("component_updater").AppendASCII(file);
 }
 
 }  // namespace
 
 class UpdateCheckerTest : public testing::Test {
  public:
   UpdateCheckerTest();
-  virtual ~UpdateCheckerTest();
+  ~UpdateCheckerTest() override;
 
   // Overrides from testing::Test.
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   void UpdateCheckComplete(const GURL& original_url,
                            int error,
                            const std::string& error_message,
                            const UpdateResponse::Results& results);
 
  protected:
   void Quit();
   void RunThreads();
   void RunThreadsUntilIdle();
@@ skipping 175 matching lines @@
   EXPECT_EQ(1, post_interceptor_->GetCount())
       << post_interceptor_->GetRequestsAsString();
 
   EXPECT_EQ(config_->UpdateUrl().front(), original_url_);
   EXPECT_EQ(403, error_);
   EXPECT_STREQ("network error", error_message_.c_str());
   EXPECT_EQ(0ul, results_.list.size());
 }
 
 }  // namespace component_updater