egl/x11: implement ANGLE_sync_control_rate
Implement EGL_ANGLE_sync_control_rate for running Chromium Linux on Wayland with EGL backend.
Resubmitting work by @kjliew and @t.clastres in !5139 (closed)
Chromium works with this patch u(with videos playing smoothly) sing /usr/bin/google-chrome-stable --use-gl=egl --enable-features=VaapiVideoDecoder --ignore-gpu-blocklist
Fix for #2930 (closed)
Edited by Satadru Pramanik