replace OVERRIDE and FINAL with override and final in media/

media/cast/sender/external_video_encoder.h

Index: media/cast/sender/external_video_encoder.h
diff --git a/media/cast/sender/external_video_encoder.h b/media/cast/sender/external_video_encoder.h
index 3a5f73b38eed4caf108972b2d29842980f30b5a2..4ae21e1c673910472c7706dfd3c3812042e49f7f 100644
--- a/media/cast/sender/external_video_encoder.h
+++ b/media/cast/sender/external_video_encoder.h
@@ -44,12 +44,12 @@ class ExternalVideoEncoder : public VideoEncoder {
   virtual bool EncodeVideoFrame(
       const scoped_refptr<media::VideoFrame>& video_frame,
       const base::TimeTicks& capture_time,
-      const FrameEncodedCallback& frame_encoded_callback) OVERRIDE;
+      const FrameEncodedCallback& frame_encoded_callback) override;
 
   // The following functions are called from the main cast thread.
-  virtual void SetBitRate(int new_bit_rate) OVERRIDE;
-  virtual void GenerateKeyFrame() OVERRIDE;
-  virtual void LatestFrameIdToReference(uint32 frame_id) OVERRIDE;
+  virtual void SetBitRate(int new_bit_rate) override;
+  virtual void GenerateKeyFrame() override;
+  virtual void LatestFrameIdToReference(uint32 frame_id) override;
 
   // Called when video_accelerator_client_ has finished creating the VEA and
   // is ready for use.