Windows: Fix make_distrib.py for libcef.dll.pdb rename (issue #856).
Windows: Fix make_distrib.py for libcef.dll.pdb rename (issue #856).

git-svn-id: 66addb63d0c46e75f185859367c4faf62af16cdd@1000 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

denzp/cef3,denzp/cef3,denzp/cef3,kuscsik/chromiumembedded,denzp/cef3,kuscsik/chromiumembedded,kuscsik/chromiumembedded,kuscsik/chromiumembedded