[PATCH v2 0/7] MR5470: win32u: Get rid of the window surface recursive mutex.

[Rémi Bernon (＠rbernon)]

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  v2: winex11: Stop using a recursive mutex for the window surfaces.
      winewayland: Stop using a recursive mutex for the window surfaces.
      winemac: Stop using a recursive mutex for the window surfaces.
      wineandroid: Stop using a recursive mutex for the window surfaces.
      win32u: Stop using a recursive mutex for the offscreen surface.
      win32u: Remove surface recursive locking requirement.
      win32u: Flush window surface when it is fully unlocked.

https://gitlab.winehq.org/wine/wine/-/merge_requests/5470