Standardize usage of virtual/override/final specifiers.

media/cast/test/end2end_unittest.cc

 // Copyright 2013 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.
 //
 // This test generate synthetic data. For audio it's a sinusoid waveform with
 // frequency kSoundFrequency and different amplitudes. For video it's a pattern
 // that is shifting by one pixel per frame, each pixels neighbors right and down
 // is this pixels value +1, since the pixel value is 8 bit it will wrap
 // frequently within the image. Visually this will create diagonally color bands
 // that moves across the screen
@@ skipping 612 matching lines @@
     audio_frame_input_ = cast_sender_->audio_frame_input();
     video_frame_input_ = cast_sender_->video_frame_input();
 
     audio_bus_factory_.reset(
         new TestAudioBusFactory(audio_sender_config_.channels,
                                 audio_sender_config_.frequency,
                                 kSoundFrequency,
                                 kSoundVolume));
   }
 
-  virtual ~End2EndTest() {
+  ~End2EndTest() override {
     cast_environment_sender_->Logging()->RemoveRawEventSubscriber(
         &event_subscriber_sender_);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     cast_sender_.reset();
     cast_receiver_.reset();
     task_runner_->RunTasks();
   }
 
   void SendVideoFrame(int start_value, const base::TimeTicks& reference_time) {
     if (start_time_.is_null())
       start_time_ = reference_time;
     // TODO(miu): Consider using a slightly skewed clock for the media timestamp
     // since the video clock may not be the same as the reference clock.
@@ skipping 856 matching lines @@
   EXPECT_LT(jump, 220u);
 }
 
 // TODO(pwestin): Add repeatable packet loss test.
 // TODO(pwestin): Add test for misaligned send get calls.
 // TODO(pwestin): Add more tests that does not resample.
 // TODO(pwestin): Add test when we have starvation for our RunTask.
 
 }  // namespace cast
 }  // namespace media