Chromecast: virtual/override cleanup.

chromecast/media/cma/ipc_streamer/coded_frame_provider_host.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_IPC_STREAMER_CODED_FRAME_PROVIDER_HOST_H_
 #define CHROMECAST_MEDIA_CMA_IPC_STREAMER_CODED_FRAME_PROVIDER_HOST_H_
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "chromecast/media/cma/base/coded_frame_provider.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/video_decoder_config.h"
 
 namespace chromecast {
 namespace media {
 class MediaMessageFifo;
 
 // CodedFrameProviderHost is a frame provider that gets the frames
 // from a media message fifo.
 class CodedFrameProviderHost : public CodedFrameProvider {
  public:
   // Note: if the media message fifo is located into shared memory,
   // the caller must make sure the shared memory segment is valid
   // during the whole lifetime of this object.
   explicit CodedFrameProviderHost(
       scoped_ptr<MediaMessageFifo> media_message_fifo);
-  virtual ~CodedFrameProviderHost();
+  ~CodedFrameProviderHost() override;
 
   // CodedFrameProvider implementation.
-  virtual void Read(const ReadCB& read_cb) override;
-  virtual void Flush(const base::Closure& flush_cb) override;
+  void Read(const ReadCB& read_cb) override;
+  void Flush(const base::Closure& flush_cb) override;
 
   // Invoked when some data has been written into the fifo.
   void OnFifoWriteEvent();
   base::Closure GetFifoWriteEventCb();
 
  private:
   void ReadMessages();
 
   base::ThreadChecker thread_checker_;
 
   // Fifo holding the frames.
   scoped_ptr<MediaMessageFifo> fifo_;
 
   ReadCB read_cb_;
 
   // Audio/video configuration for the next A/V buffer.
   ::media::AudioDecoderConfig audio_config_;
   ::media::VideoDecoderConfig video_config_;
 
   base::WeakPtr<CodedFrameProviderHost> weak_this_;
   base::WeakPtrFactory<CodedFrameProviderHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CodedFrameProviderHost);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_IPC_STREAMER_CODED_FRAME_PROVIDER_HOST_H_