Chromecast: virtual/override cleanup.

chromecast/media/cma/backend/media_pipeline_device_fake.h

Index: chromecast/media/cma/backend/media_pipeline_device_fake.h
diff --git a/chromecast/media/cma/backend/media_pipeline_device_fake.h b/chromecast/media/cma/backend/media_pipeline_device_fake.h
index 0534515bf9f3bb689ea73358f5984c888c94457b..248c9a4322eea4b736d3c2c660ff847833457182 100644
--- a/chromecast/media/cma/backend/media_pipeline_device_fake.h
+++ b/chromecast/media/cma/backend/media_pipeline_device_fake.h
@@ -19,12 +19,12 @@ class VideoPipelineDeviceFake;
 class MediaPipelineDeviceFake : public MediaPipelineDevice {
  public:
   MediaPipelineDeviceFake();
-  virtual ~MediaPipelineDeviceFake();
+  ~MediaPipelineDeviceFake() override;
 
   // MediaPipelineDevice implementation.
-  virtual AudioPipelineDevice* GetAudioPipelineDevice() const override;
-  virtual VideoPipelineDevice* GetVideoPipelineDevice() const override;
-  virtual MediaClockDevice* GetMediaClockDevice() const override;
+  AudioPipelineDevice* GetAudioPipelineDevice() const override;
+  VideoPipelineDevice* GetVideoPipelineDevice() const override;
+  MediaClockDevice* GetMediaClockDevice() const override;
 
  private:
   scoped_ptr<MediaClockDeviceFake> media_clock_device_;