VPX HW encode using MediaFoundation

media/gpu/media_foundation_video_encode_accelerator_win.h

Index: media/gpu/media_foundation_video_encode_accelerator_win.h
diff --git a/media/gpu/media_foundation_video_encode_accelerator_win.h b/media/gpu/media_foundation_video_encode_accelerator_win.h
index 1720a78b08bf4dca6826362a13c7221b332748d9..138adc687ce8e9664bbb0fabc96eccb6826b801a 100644
--- a/media/gpu/media_foundation_video_encode_accelerator_win.h
+++ b/media/gpu/media_foundation_video_encode_accelerator_win.h
@@ -117,6 +117,11 @@ class MEDIA_GPU_EXPORT MediaFoundationVideoEncodeAccelerator
   // EncodeOutput needs to be copied into a BitstreamBufferRef as a FIFO.
   std::deque<std::unique_ptr<EncodeOutput>> encoder_output_queue_;
 
+  // Parse command line values to see the supported codecs.
+  const bool h264_enabled_;
+  const bool vpx_enabled_;
+
+  VideoCodecProfile output_profile_;
   gfx::Size input_visible_size_;
   size_t bitstream_buffer_size_;
   uint32_t frame_rate_;