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

base/threading/platform_thread_unittest.cc

 // 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.
 
 #include "base/compiler_specific.h"
 #include "base/threading/platform_thread.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 // Trivial tests that thread runs and doesn't crash on create and join ---------
 
 class TrivialThread : public PlatformThread::Delegate {
  public:
   TrivialThread() : did_run_(false) {}
 
-  virtual void ThreadMain() OVERRIDE {
-    did_run_ = true;
-  }
+  void ThreadMain() override { did_run_ = true; }
 
   bool did_run() const { return did_run_; }
 
  private:
   bool did_run_;
 
   DISALLOW_COPY_AND_ASSIGN(TrivialThread);
 };
 
 TEST(PlatformThreadTest, Trivial) {
@@ skipping 19 matching lines @@
   for (size_t n = 0; n < arraysize(thread); n++)
     ASSERT_TRUE(thread[n].did_run());
 }
 
 // Tests of basic thread functions ---------------------------------------------
 
 class FunctionTestThread : public TrivialThread {
  public:
   FunctionTestThread() : thread_id_(0) {}
 
-  virtual void ThreadMain() OVERRIDE {
+  void ThreadMain() override {
     thread_id_ = PlatformThread::CurrentId();
     PlatformThread::YieldCurrentThread();
     PlatformThread::Sleep(TimeDelta::FromMilliseconds(50));
 
     // Make sure that the thread ID is the same across calls.
     EXPECT_EQ(thread_id_, PlatformThread::CurrentId());
 
     TrivialThread::ThreadMain();
   }
 
@@ skipping 41 matching lines @@
     for (size_t i = 0; i < n; ++i) {
       EXPECT_NE(thread[i].thread_id(), thread[n].thread_id());
     }
   }
 
   // Make sure that the thread ID is the same across calls.
   EXPECT_EQ(main_thread_id, PlatformThread::CurrentId());
 }
 
 }  // namespace base