How Does chromium Draw frame

[Rahul Patel]

Hello,

I was going though the "Life of a Pixel"  talk from the youtube, and i am not be able to find the place in skia_output_surface_impl_on_gpu.cc file where chromium send the draw command to gl for drawing the frame. example-  SK::Surface->Draw as per the below talk.

https://www.youtube.com/watch?v=K2QHdgAKP-s

However do see, we have draw method being called at few of the places inside skia_output_surface_impl_on_gpu.cc , for example- 

1. https://source.chromium.org/chromium/chromium/src/+/main:components/viz/service/display_embedder/skia_output_surface_impl_on_gpu.cc;l=501 
   
2. https://source.chromium.org/chromium/chromium/src/+/main:components/viz/service/display_embedder/skia_output_surface_impl_on_gpu.cc;l=529
   
3. https://source.chromium.org/chromium/chromium/src/+/main:components/viz/service/display_embedder/skia_output_surface_impl_on_gpu.cc;l=1179 

But which draw call is to draw the frame on the buffer? Could someone please confirm it ? Attached the particular slide where where it call the draw API.

Thanks,

 Rahul