Standardize usage of virtual/override/final specifiers.

remoting/host/linux/audio_pipe_reader_unittest.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 "remoting/host/linux/audio_pipe_reader.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
 #include "base/files/file.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/threading/thread.h"
 #include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace remoting {
 
 class AudioPipeReaderTest : public testing::Test,
                             public AudioPipeReader::StreamObserver {
  public:
   AudioPipeReaderTest()
     : stop_at_position_(-1) {
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     ASSERT_TRUE(test_dir_.CreateUniqueTempDir());
     pipe_path_ = test_dir_.path().AppendASCII("test_pipe");
     audio_thread_.reset(new base::Thread("TestAudioThread"));
     audio_thread_->StartWithOptions(
         base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
     reader_ = AudioPipeReader::Create(audio_thread_->message_loop_proxy(),
                                       pipe_path_);
     reader_->AddObserver(this);
   }
 
   // AudioPipeReader::StreamObserver interface.
-  virtual void OnDataRead(scoped_refptr<base::RefCountedString> data) override {
+  void OnDataRead(scoped_refptr<base::RefCountedString> data) override {
     read_data_ += data->data();
     if (stop_at_position_ > 0 &&
         static_cast<int>(read_data_.size()) >= stop_at_position_) {
       stop_at_position_ = -1;
       run_loop_->Quit();
     }
   }
 
   void CreatePipe() {
     ASSERT_EQ(0, mkfifo(pipe_path_.value().c_str(), 0600));
@@ skipping 59 matching lines @@
 
   base::TimeTicks start_time = base::TimeTicks::Now();
   ASSERT_NO_FATAL_FAILURE(WriteAndWait(test_data));
   base::TimeDelta time_passed = base::TimeTicks::Now() - start_time;
 
   EXPECT_EQ(test_data, read_data_);
   EXPECT_GE(time_passed, base::TimeDelta::FromMilliseconds(500));
 }
 
 }  // namespace remoting