replace 'virtual ... OVERRIDE' with '... override'

base/test/sequenced_worker_pool_owner.h

 // 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.
 
 #ifndef BASE_THREADING_SEQUENCED_WORKER_POOL_UNITTEST_H_
 #define BASE_THREADING_SEQUENCED_WORKER_POOL_UNITTEST_H_
 
 #include <cstddef>
 #include <string>
 
@@ skipping 24 matching lines @@
   // Don't change the returned pool's testing observer.
   const scoped_refptr<SequencedWorkerPool>& pool();
 
   // The given callback will be called on WillWaitForShutdown().
   void SetWillWaitForShutdownCallback(const Closure& callback);
 
   int has_work_call_count() const;
 
  private:
   // SequencedWorkerPool::TestingObserver implementation.
-  virtual void OnHasWork() OVERRIDE;
-  virtual void WillWaitForShutdown() OVERRIDE;
-  virtual void OnDestruct() OVERRIDE;
+  void OnHasWork() override;
+  void WillWaitForShutdown() override;
+  void OnDestruct() override;
 
   MessageLoop* const constructor_message_loop_;
   scoped_refptr<SequencedWorkerPool> pool_;
   Closure will_wait_for_shutdown_callback_;
 
   mutable Lock has_work_lock_;
   int has_work_call_count_;
 
   DISALLOW_COPY_AND_ASSIGN(SequencedWorkerPoolOwner);
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_SEQUENCED_WORKER_POOL_UNITTEST_H_