[WIN32K]
 - Improve parameter checking in NtGdiExtSelectClipRgn
 - Update the DC clipping regions before getting the clipbox

git-svn-id: svn://svn.reactos.org/reactos/trunk@63735 97493ccd-5924-5043-b1f5-66cb403b36ce
[NTOS/MM]
 - First implementation of NtProtectVirtualMemory with Transition PTE
 - Release PTE frame page after erasing the PTE to avoid useless page fault

git-svn-id: svn://svn.reactos.org/reactos/trunk@63736 97493ccd-5924-5043-b1f5-66cb403b36ce