Chromecast: virtual/override cleanup.

chromecast/media/cma/backend/video_pipeline_device.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_PIPELINE_DEVICE_H_
 #define CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PIPELINE_DEVICE_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "chromecast/media/cma/backend/media_component_device.h"
@@ skipping 24 matching lines @@
   struct VideoClient {
     VideoClient();
     ~VideoClient();
 
     // Invoked each time the natural size is updated.
     base::Callback<void(const gfx::Size& natural_size)>
         natural_size_changed_cb;
   };
 
   VideoPipelineDevice();
-  virtual ~VideoPipelineDevice();
+  ~VideoPipelineDevice() override;
 
   // Registers |client| as the video specific event handler.
   virtual void SetVideoClient(const VideoClient& client) = 0;
 
   // Provide the video configuration.
   // Must be called before switching from |kStateUninitialized| to |kStateIdle|.
   // Afterwards, this can be invoked any time the configuration changes.
   // Returns true if the configuration is a supported configuration.
   virtual bool SetConfig(const ::media::VideoDecoderConfig& config) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VideoPipelineDevice);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PIPELINE_DEVICE_H_