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

base/message_loop/message_pump_perftest.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/format_macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
@@ skipping 214 matching lines @@
 #endif
 
 static void DoNothing() {
 }
 
 class FakeMessagePump : public MessagePump {
  public:
   FakeMessagePump() {}
   virtual ~FakeMessagePump() {}
 
-  virtual void Run(Delegate* delegate) OVERRIDE {}
+  void Run(Delegate* delegate) override {}
 
-  virtual void Quit() OVERRIDE {}
-  virtual void ScheduleWork() OVERRIDE {}
-  virtual void ScheduleDelayedWork(
-      const TimeTicks& delayed_work_time) OVERRIDE {}
+  void Quit() override {}
+  void ScheduleWork() override {}
+  void ScheduleDelayedWork(const TimeTicks& delayed_work_time) override {}
 };
 
 class PostTaskTest : public testing::Test {
  public:
   void Run(int batch_size, int tasks_per_reload) {
     base::TimeTicks start = base::TimeTicks::HighResNow();
     base::TimeTicks now;
     MessageLoop loop(scoped_ptr<MessagePump>(new FakeMessagePump));
     scoped_refptr<internal::IncomingTaskQueue> queue(
         new internal::IncomingTaskQueue(&loop));
@@ skipping 34 matching lines @@
 TEST_F(PostTaskTest, TenTasksPerReload) {
   Run(10000, 10);
 }
 
 TEST_F(PostTaskTest, OneHundredTasksPerReload) {
   Run(1000, 100);
 }
 
 }  // namespace
 }  // namespace base