Add virtual and OVERRIDE to base/ implementation files

base/message_pump_libevent_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/message_pump_libevent.h"
 
 #include <unistd.h>
 
 #include "base/message_loop.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(USE_SYSTEM_LIBEVENT)
 #include <event.h>
 #else
 #include "third_party/libevent/event.h"
 #endif
 
 namespace base {
 
 class MessagePumpLibeventTest : public testing::Test {
  protected:
   MessagePumpLibeventTest()
       : ui_loop_(MessageLoop::TYPE_UI),
         io_thread_("MessagePumpLibeventTestIOThread") {}
   virtual ~MessagePumpLibeventTest() {}
 
-  virtual void SetUp() {
+  virtual 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());
   }
 
   MessageLoop* ui_loop() { return &ui_loop_; }
   MessageLoopForIO* io_loop() const {
     return static_cast<MessageLoopForIO*>(io_thread_.message_loop());
   }
 
   void OnLibeventNotification(
       MessagePumpLibevent* pump,
       MessagePumpLibevent::FileDescriptorWatcher* controller) {
     pump->OnLibeventNotification(0, EV_WRITE | EV_READ, controller);
   }
 
   MessageLoop ui_loop_;
   Thread io_thread_;
 };
 
 namespace {
 
 // Concrete implementation of MessagePumpLibevent::Watcher that does
 // nothing useful.
 class StupidWatcher : public MessagePumpLibevent::Watcher {
  public:
   virtual ~StupidWatcher() {}
 
   // base:MessagePumpLibevent::Watcher interface
-  virtual void OnFileCanReadWithoutBlocking(int fd) {}
-  virtual void OnFileCanWriteWithoutBlocking(int fd) {}
+  virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE {}
+  virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE {}
 };
 
 #if GTEST_HAS_DEATH_TEST && !defined(NDEBUG)
 
 // Test to make sure that we catch calling WatchFileDescriptor off of the
 // wrong thread.
 TEST_F(MessagePumpLibeventTest, TestWatchingFromBadThread) {
   MessagePumpLibevent::FileDescriptorWatcher watcher;
   StupidWatcher delegate;
 
   ASSERT_DEATH(io_loop()->WatchFileDescriptor(
       STDOUT_FILENO, false, MessageLoopForIO::WATCH_READ, &watcher, &delegate),
       "Check failed: "
       "watch_file_descriptor_caller_checker_.CalledOnValidThread()");
 }
 
 #endif  // GTEST_HAS_DEATH_TEST && !defined(NDEBUG)
 
 class DeleteWatcher : public MessagePumpLibevent::Watcher {
  public:
   explicit DeleteWatcher(
       MessagePumpLibevent::FileDescriptorWatcher* controller)
       : controller_(controller) {
     DCHECK(controller_);
   }
   virtual ~DeleteWatcher() {}
 
   // base:MessagePumpLibevent::Watcher interface
-  virtual void OnFileCanReadWithoutBlocking(int /* fd */) {
+  virtual void OnFileCanReadWithoutBlocking(int /* fd */) OVERRIDE {
     NOTREACHED();
   }
-  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) {
+  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
     delete controller_;
   }
 
  private:
   MessagePumpLibevent::FileDescriptorWatcher* const controller_;
 };
 
 TEST_F(MessagePumpLibeventTest, DeleteWatcher) {
   scoped_refptr<MessagePumpLibevent> pump(new MessagePumpLibevent);
   MessagePumpLibevent::FileDescriptorWatcher* watcher =
       new MessagePumpLibevent::FileDescriptorWatcher;
   DeleteWatcher delegate(watcher);
   pump->WatchFileDescriptor(
       0, false, MessagePumpLibevent::WATCH_READ_WRITE, watcher, &delegate);
 
   // Spoof a libevent notification.
   OnLibeventNotification(pump, watcher);
 }
 
 class StopWatcher : public MessagePumpLibevent::Watcher {
  public:
   explicit StopWatcher(
       MessagePumpLibevent::FileDescriptorWatcher* controller)
       : controller_(controller) {
     DCHECK(controller_);
   }
   virtual ~StopWatcher() {}
 
   // base:MessagePumpLibevent::Watcher interface
-  virtual void OnFileCanReadWithoutBlocking(int /* fd */) {
+  virtual void OnFileCanReadWithoutBlocking(int /* fd */) OVERRIDE {
     NOTREACHED();
   }
-  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) {
+  virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
     controller_->StopWatchingFileDescriptor();
   }
 
  private:
   MessagePumpLibevent::FileDescriptorWatcher* const controller_;
 };
 
 TEST_F(MessagePumpLibeventTest, StopWatcher) {
   scoped_refptr<MessagePumpLibevent> pump(new MessagePumpLibevent);
   MessagePumpLibevent::FileDescriptorWatcher watcher;
   StopWatcher delegate(&watcher);
   pump->WatchFileDescriptor(
       0, false, MessagePumpLibevent::WATCH_READ_WRITE, &watcher, &delegate);
 
   // Spoof a libevent notification.
   OnLibeventNotification(pump, &watcher);
 }
 
 }  // namespace
 
 }  // namespace base