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

base/threading/simple_thread.h

 // Copyright (c) 2011 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.
 
 // WARNING: You should probably be using Thread (thread.h) instead.  Thread is
 //          Chrome's message-loop based Thread abstraction, and if you are a
 //          thread running in the browser, there will likely be assumptions
 //          that your thread will have an associated message loop.
 //
 // This is a simple thread interface that backs to a native operating system
@@ skipping 84 matching lines @@
   // Return the thread id, only valid after Start().
   PlatformThreadId tid() { return tid_; }
 
   // Return True if Start() has ever been called.
   bool HasBeenStarted();
 
   // Return True if Join() has evern been called.
   bool HasBeenJoined() { return joined_; }
 
   // Overridden from PlatformThread::Delegate:
-  virtual void ThreadMain() OVERRIDE;
+  void ThreadMain() override;
 
   // Only set priorities with a careful understanding of the consequences.
   // This is meant for very limited use cases.
   void SetThreadPriority(ThreadPriority priority) {
     PlatformThread::SetThreadPriority(thread_, priority);
   }
 
  private:
   const std::string name_prefix_;
   std::string name_;
@@ skipping 13 matching lines @@
     virtual void Run() = 0;
   };
 
   DelegateSimpleThread(Delegate* delegate,
                        const std::string& name_prefix);
   DelegateSimpleThread(Delegate* delegate,
                        const std::string& name_prefix,
                        const Options& options);
 
   virtual ~DelegateSimpleThread();
-  virtual void Run() OVERRIDE;
+  void Run() override;
+
  private:
   Delegate* delegate_;
 };
 
 // DelegateSimpleThreadPool allows you to start up a fixed number of threads,
 // and then add jobs which will be dispatched to the threads.  This is
 // convenient when you have a lot of small work that you want done
 // multi-threaded, but don't want to spawn a thread for each small bit of work.
 //
 // You just call AddWork() to add a delegate to the list of work to be done.
@@ skipping 17 matching lines @@
   void JoinAll();
 
   // It is safe to AddWork() any time, before or after Start().
   // Delegate* should always be a valid pointer, NULL is reserved internally.
   void AddWork(Delegate* work, int repeat_count);
   void AddWork(Delegate* work) {
     AddWork(work, 1);
   }
 
   // We implement the Delegate interface, for running our internal threads.
-  virtual void Run() OVERRIDE;
+  void Run() override;
 
  private:
   const std::string name_prefix_;
   int num_threads_;
   std::vector<DelegateSimpleThread*> threads_;
   std::queue<Delegate*> delegates_;
   base::Lock lock_;            // Locks delegates_
   WaitableEvent dry_;    // Not signaled when there is no work to do.
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_SIMPLE_THREAD_H_