win32u: Use session BaseNamedObjects for display_device_init mutex.

The mutex is also used in user32, gdi32, and winevulkan, where it is opened through kernel32, which opens it from the session directory.

I believe this will fix the d3drm spurious errors, and hopefully the ddraw ones too, but I haven't investigated these as the test takes much longer to run.

Merge request reports

Loading