Use `DwmFlush` unconditionally for Windows vsync (#39913)
Closes #36934
I'm still experiencing bugs with the
`DCompositionWaitForCompositorClock` API. Let's back out the support for
now until the fixes are identified and widely available.
`DwmFlush` does various things that aren't just waiting for VSync, so
it's not ideal, but it's not bad enough that it's worth a bigger
refactor right now.
Release Notes:
- N/A
677d6acc9dJohn Tur committed on 10/13/2025, 4:40:00 PM· committed by GitHubparent96add6c