Chromecast: virtual/override cleanup.

chromecast/media/cma/backend/video_plane_fake.h

 // 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.
 
 #ifndef CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PLANE_FAKE_H_
 #define CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PLANE_FAKE_H_
 
 #include "base/macros.h"
 #include "chromecast/media/cma/backend/video_plane.h"
 
 namespace chromecast {
 namespace media {
 
 class VideoPlaneFake : public VideoPlane {
  public:
   VideoPlaneFake();
-  virtual ~VideoPlaneFake();
+  ~VideoPlaneFake() override;
 
   // VideoPlane implementation.
   gfx::Size GetScreenResolution() override;
   void SetGeometry(const gfx::QuadF& quad,
                    CoordinateType coordinate_type) override;
   void OnScreenResolutionChanged(const gfx::Size& screen_res) override;
 
   DISALLOW_COPY_AND_ASSIGN(VideoPlaneFake);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PLANE_FAKE_H_