Standardize usage of virtual/override/final specifiers in base/.

base/sequence_checker_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/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
@@ skipping 38 matching lines @@
  private:
   SequenceChecker sequence_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SequenceCheckedObject);
 };
 
 class SequenceCheckerTest : public testing::Test {
  public:
   SequenceCheckerTest() : other_thread_("sequence_checker_test_other_thread") {}
 
-  virtual ~SequenceCheckerTest() {}
-
-  virtual void SetUp() override {
+  void SetUp() override {
     other_thread_.Start();
     ResetPool();
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     other_thread_.Stop();
     pool()->Shutdown();
   }
 
  protected:
   base::Thread* other_thread() { return &other_thread_; }
 
   const scoped_refptr<SequencedWorkerPool>& pool() {
     return pool_owner_->pool();
   }
@@ skipping 250 matching lines @@
 #endif  // ENABLE_SEQUENCE_CHECKER
 
 #endif  // GTEST_HAS_DEATH_TEST || !ENABLE_SEQUENCE_CHECKER
 
 }  // namespace
 
 }  // namespace base
 
 // Just in case we ever get lumped together with other compilation units.
 #undef ENABLE_SEQUENCE_CHECKER