Fixes: bb6bcaf8

This partially reverts commit 0b7eed03.

glGetStringi() is not available before 3.0. We can't trust its
function pointer being NULL since the GL implementation is allowed to
return anything in this case (*cough* macOS's GL on Metal *cough*).

This probably regressed when fd92954d
removed the "if (!disabled[0]) return FALSE;" exit from
filter_extensions(), although that simply exposed an existing issue.

This partially reverts commit faae2162.

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

As regular GUI apps should.
Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Regular GUI apps don't.
Signed-off-by: Eric Pouech <epouech@codeweavers.com>

This would cause a leak since we have a cyclic ref now.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

UIEvent.view is still todo_wine because it returns NULL for some reason,
but it is clear from the existing tests that it must match the outer window.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

It is only accessed from the CS thread now.