The source project of this merge request has been removed.
libwebm 2022-10-31 (ed35e0bb)
Code extracted from:
https://gitlab.kitware.com/third-party/libwebm.gitat commit ed35e0bbbb9656fec88b1b8fc981266231e7a0f8 (for/vtkstreaming-20221031-1.0.0.29).