Standardize usage of virtual/override/final in content/

content/common/gpu/media/vt_video_decode_accelerator.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 CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 16 matching lines @@
 
 namespace content {
 
 // VideoToolbox.framework implementation of the VideoDecodeAccelerator
 // interface for Mac OS X (currently limited to 10.9+).
 class VTVideoDecodeAccelerator
     : public media::VideoDecodeAccelerator,
       public base::NonThreadSafe {
  public:
   explicit VTVideoDecodeAccelerator(CGLContextObj cgl_context);
-  virtual ~VTVideoDecodeAccelerator();
+  ~VTVideoDecodeAccelerator() override;
 
   // VideoDecodeAccelerator implementation.
-  virtual bool Initialize(
-      media::VideoCodecProfile profile,
-      Client* client) override;
-  virtual void Decode(const media::BitstreamBuffer& bitstream) override;
-  virtual void AssignPictureBuffers(
+  bool Initialize(media::VideoCodecProfile profile, Client* client) override;
+  void Decode(const media::BitstreamBuffer& bitstream) override;
+  void AssignPictureBuffers(
       const std::vector<media::PictureBuffer>& pictures) override;
-  virtual void ReusePictureBuffer(int32_t picture_id) override;
-  virtual void Flush() override;
-  virtual void Reset() override;
-  virtual void Destroy() override;
-  virtual bool CanDecodeOnIOThread() override;
+  void ReusePictureBuffer(int32_t picture_id) override;
+  void Flush() override;
+  void Reset() override;
+  void Destroy() override;
+  bool CanDecodeOnIOThread() override;
 
   // Called by OutputThunk() when VideoToolbox finishes decoding a frame.
   void Output(
       int32_t bitstream_id,
       OSStatus status,
       CVImageBufferRef image_buffer);
 
  private:
   struct DecodedFrame {
     DecodedFrame(int32_t bitstream_id, CVImageBufferRef image_buffer);
@@ skipping 99 matching lines @@
   // Declared last to ensure that all decoder thread tasks complete before any
   // state is destructed.
   base::Thread decoder_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(VTVideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VT_VIDEO_DECODE_ACCELERATOR_H_