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

base/message_loop/message_pump_io_ios_unittest.cc

Index: base/message_loop/message_pump_io_ios_unittest.cc
diff --git a/base/message_loop/message_pump_io_ios_unittest.cc b/base/message_loop/message_pump_io_ios_unittest.cc
index e6dcc33a4bff2a1f378b19a34016ccf12fba2849..ccd808b715493a3ff60dce8be9344bc0976c8788 100644
--- a/base/message_loop/message_pump_io_ios_unittest.cc
+++ b/base/message_loop/message_pump_io_ios_unittest.cc
@@ -20,7 +20,7 @@ class MessagePumpIOSForIOTest : public testing::Test {
         io_thread_("MessagePumpIOSForIOTestIOThread") {}
   virtual ~MessagePumpIOSForIOTest() {}
 
-  virtual void SetUp() OVERRIDE {
+  void SetUp() override {
     Thread::Options options(MessageLoop::TYPE_IO, 0);
     ASSERT_TRUE(io_thread_.StartWithOptions(options));
     ASSERT_EQ(MessageLoop::TYPE_IO, io_thread_.message_loop()->type());
@@ -30,7 +30,7 @@ class MessagePumpIOSForIOTest : public testing::Test {
     ASSERT_EQ(0, ret);
   }
 
-  virtual void TearDown() OVERRIDE {
+  void TearDown() override {
     if (IGNORE_EINTR(close(pipefds_[0])) < 0)
       PLOG(ERROR) << "close";
     if (IGNORE_EINTR(close(pipefds_[1])) < 0)
@@ -67,8 +67,8 @@ class StupidWatcher : public MessagePumpIOSForIO::Watcher {
   virtual ~StupidWatcher() {}
 
   // base:MessagePumpIOSForIO::Watcher interface
-  virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE {}
-  virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE {}
+  void OnFileCanReadWithoutBlocking(int fd) override {}
+  void OnFileCanWriteWithoutBlocking(int fd) override {}
 };
 
 #if GTEST_HAS_DEATH_TEST && !defined(NDEBUG)
@@ -96,13 +96,9 @@ class BaseWatcher : public MessagePumpIOSForIO::Watcher {
   virtual ~BaseWatcher() {}
 
   // MessagePumpIOSForIO::Watcher interface
-  virtual void OnFileCanReadWithoutBlocking(int /* fd */) OVERRIDE {
-    NOTREACHED();
-  }
+  void OnFileCanReadWithoutBlocking(int /* fd */) override { NOTREACHED(); }
 
-  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
-    NOTREACHED();
-  }
+  void OnFileCanWriteWithoutBlocking(int /* fd */) override { NOTREACHED(); }
 
  protected:
   MessagePumpIOSForIO::FileDescriptorWatcher* controller_;
@@ -118,7 +114,7 @@ class DeleteWatcher : public BaseWatcher {
     DCHECK(!controller_);
   }
 
-  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
+  void OnFileCanWriteWithoutBlocking(int /* fd */) override {
     DCHECK(controller_);
     delete controller_;
     controller_ = NULL;
@@ -148,7 +144,7 @@ class StopWatcher : public BaseWatcher {
 
   virtual ~StopWatcher() {}
 
-  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
+  void OnFileCanWriteWithoutBlocking(int /* fd */) override {
     controller_->StopWatchingFileDescriptor();
     if (fd_to_start_watching_ >= 0) {
       pump_->WatchFileDescriptor(fd_to_start_watching_,